{"id":584,"date":"2021-05-31T03:39:00","date_gmt":"2021-05-31T03:39:00","guid":{"rendered":"https:\/\/class12.studyguruji.in\/?p=584"},"modified":"2023-10-11T08:09:33","modified_gmt":"2023-10-11T08:09:33","slug":"1-%e0%a4%a0%e0%a5%8b%e0%a4%b8-%e0%a4%85%e0%a4%b5%e0%a4%b8%e0%a5%8d%e0%a4%a5%e0%a4%be-3","status":"publish","type":"post","link":"https:\/\/class12.studyguruji.in\/?p=584","title":{"rendered":"1. \u0920\u094b\u0938 \u0905\u0935\u0938\u094d\u0925\u093e"},"content":{"rendered":"

1.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0938\u0947 \u092c\u0947\u0930\u0935\u093e\u0926\u093e\u0930 \u0920\u094b\u0938 \u0915\u094c\u0928-\u0938\u093e \u0939\u0948<\/span>\u00a0?<\/span><\/b>
\n(A)\u00a0\u0939\u0940\u0930\u093e<\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0\u0917\u094d\u0930\u0947\u092b\u093e\u0907\u091f<\/span>
\n(C)\u00a0\u0938\u093e\u092e\u093e\u0928\u094d\u092f \u0932\u0935\u0923<\/span>
\n(D)\u00a0\u0917\u094d\u0932\u093e\u0938<\/span><\/span><\/span><\/p>\n

2.\u00a0\u090a\u0937\u094d\u092e\u093e \u0914\u0930 \u0935\u093f\u0926\u094d\u092f\u0941\u0924 \u0915\u093e \u0905\u091a\u094d\u091b\u093e \u091a\u093e\u0932\u0915 \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u090f\u0928\u094d\u0925\u094d\u0930\u093e\u0938\u093e\u0907\u091f \u0915\u094b\u0915<\/span>
\n(B)\u00a0\u0939\u0940\u0930\u093e<\/span>
\n(C)\u00a0<\/span>\u0917\u094d\u0930\u0947\u092b\u093e\u0907\u091f<\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0\u091a\u093e\u0930\u0915\u094b\u0932<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

3.\u00a0\u0935\u0939 \u092a\u0926\u093e\u0930\u094d\u0925 \u091c\u093f\u0938\u0915\u093e<\/span>\u00a0OK\u00a0\u092a\u0930 \u0936\u0942\u0928\u094d\u092f \u092a\u094d\u0930\u0924\u093f\u0930\u094b\u0927 \u0939\u094b\u0924\u093e \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0938\u0941\u091a\u093e\u0932\u0915 (<\/span>conductor)
\n(B)\u00a0<\/span>\u0905\u0924\u093f\u0938\u0941\u091a\u093e\u0932\u0915 (<\/span>superconductor)\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u0915\u0941\u091a\u093e\u0932\u0915 (<\/span>Insulator)
\n(D)\u00a0\u0905\u0930\u094d\u0926\u094d\u0927\u091a\u093e\u0932\u0915 (<\/span>semiconductor)<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

4.\u00a0\u0907\u0928\u092e\u0947\u0902 \u0915\u094c\u0928 \u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932\u0940\u092f \u0920\u094b\u0938 \u0915\u093e \u0917\u0941\u0923 \u0928\u0939\u0940\u0902 \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u090f\u0928\u0940\u0938\u094b\u091f\u094d\u0930\u093e\u092a\u0940\u0915<\/span>
\n(B)\u00a0<\/span>\u0906\u0907\u0938\u094b\u091f\u094d\u0930\u0949\u092a\u0940\u0915<\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u0915\u0921\u093c\u093e<\/span>
\n(D)\u00a0\u0918\u0928\u093e<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/p>\n

5.\u00a0\u0927\u0928\u093e\u092f\u0928 \u0905\u0928\u094d\u0924\u0930\u093e\u0915\u093e\u0936 \u0938\u094d\u0925\u093e\u0928 \u092e\u0947\u0902 \u0909\u092a\u0938\u094d\u0925\u093f\u0924 \u0939\u094b \u091c\u093e\u0924\u0947 \u0939\u0948\u0902<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u092b\u094d\u0930\u0947\u0902\u0915\u0947\u0932 \u0926\u094b\u0937<\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0\u0936\u0949\u091f\u0915\u0940 \u0926\u094b\u0937<\/span>
\n(C)\u00a0\u0930\u093f\u0915\u094d\u0924\u093f\u0915\u093e \u0926\u094b\u0937<\/span>
\n(D)\u00a0\u0927\u093e\u0924\u0941 \u0928\u094d\u092f\u0942\u0928\u0924\u093e \u0926\u094b\u0937<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

6.\u00a0\u090f\u0935\u094b\u0917\u094d\u0930\u0921\u094b \u0938\u0902\u0916\u094d\u092f\u093e (<\/span>N)\u00a0\u092c\u0930\u093e\u092c\u0930 \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) 6.023 x 1024<\/sup>
\n(B) 6.023 x 1023<\/sup><\/span>\u2713<\/span><\/b>
\n(C) 6.023 x 10-23<\/sup>
\n(D) 11.2<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

7.\u00a0\u092b\u0932\u0915 \u0915\u0947\u0928\u094d\u0926\u094d\u0930\u093f\u0924 \u0907\u0915\u093e\u0908 \u0938\u0947\u0932 \u092e\u0947\u0902 \u091a\u0924\u0941\u0937\u094d\u092b\u0932\u0915\u0940\u092f \u0930\u093f\u0915\u094d\u0924\u093f\u092f\u094b\u0902 \u0915\u0940 \u0915\u0941\u0932 \u0938\u0902\u0916\u094d\u092f\u093e \u0939\u094b\u0924\u0940 \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) 6
\n(B) 8<\/span>\u00a0\u2713<\/span><\/b>
\n(C) 10
\n(D) 12<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

8.\u00a0\u0936\u0949\u091f\u094d\u0915\u0940 \u0926\u094b\u0937 (<\/span>Schottky defect)\u00a0\u092a\u093e\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) NaCl
\n(B) KCl
\n(C) CS<\/sub>Cl
\n(D)\u00a0<\/span>\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0938\u092d\u0940 \u092e\u0947\u0902<\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/p>\n

9.\u00a0\u0938\u0939\u0938\u0902\u092f\u094b\u091c\u0915 \u0920\u094b\u0938 \u092e\u0947\u0902 \u091c\u093e\u0932\u0915 \u092c\u093f\u0928\u094d\u0926\u0941 \u0915\u094b \u0905\u0927\u094d\u092f\u093e\u0938\u093f\u0924 \u0915\u0930\u0928\u0947 \u0935\u093e\u0932\u0947 \u0915\u094b\u0923 \u0939\u094b\u0924\u0947 \u0939\u0948\u0902 :<\/span><\/span><\/b><\/span><\/p>\n

(A)\u00a0\u092a\u0930\u092e\u093e\u0923\u0941<\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0\u0906\u092f\u0928\u0938<\/span>
\n(C)\u00a0\u0905\u0923\u0941<\/span>
\n(D)\u00a0\u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

10.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0915\u094c\u0928-\u0938\u093e \u0917\u0941\u0923 \u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932\u0940\u092f \u0920\u094b\u0938 \u092a\u0926\u093e\u0930\u094d\u0925 \u0915\u093e \u0928\u0939\u0940\u0902 \u0939\u0948<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0935\u093f\u092d\u093f\u0928\u094d\u0928 \u0926\u093f\u0936\u093e\u0913\u0902 \u092e\u0947\u0902 \u0938\u092e\u093e\u0928 \u0917\u0941\u0923<\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0\u0938\u0941\u0938\u094d\u092a\u0937\u094d\u091f \u0926\u094d\u0930\u0935\u0923\u093e\u0902\u0915 \u092e\u093e.<\/span>
\n(C)\u00a0\u0928\u093f\u0936\u094d\u091a\u093f\u0924 \u091c\u094d\u092f\u093e\u092e\u093f\u0924\u0940\u092f \u0906\u0915\u0943\u0924\u093f<\/span>
\n(D)\u00a0\u0909\u091a\u094d\u091a \u0905\u0902\u0924\u0930\u093e\u0923\u094d\u0935\u093f\u0915 \u092c\u0932<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/p>\n

11. BCC\u00a0\u0938\u0902\u0930\u091a\u0928\u093e \u092e\u0947\u0902 \u0915\u0947\u0928\u094d\u0926\u094d\u0930 \u092e\u0947\u0902 \u0905\u0935\u0938\u094d\u0925\u093f\u0924 \u092a\u0930\u092e\u093e\u0923\u0941 \u0928\u093f\u092e\u094d\u0928 \u092f\u0942\u0928\u093f\u091f \u0938\u0947\u0932 \u0938\u0947 \u0938\u093e\u091d\u093e \u0915\u0930\u0924\u093e \u0939\u0948\u0964<\/span><\/span><\/b><\/span><\/p>\n

(A) 1\u00a0\u092f\u0942\u0928\u093f\u091f \u0938\u0947\u0932<\/span>\u00a0\u2713<\/span><\/b>
\n(B) 4\u00a0\u092f\u0942\u0928\u093f\u091f \u0938\u0947\u0932<\/span>
\n(C) 3\u00a0\u092f\u0942\u0928\u093f\u091f \u0938\u0947\u0932<\/span>
\n(D) 2\u00a0\u092f\u0942\u0928\u093f\u091f \u0938\u0947\u0932<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

12.\u00a0\u092a\u093e\u0930\u093e (<\/span>Mercury)\u00a0\u0915\u093e \u092a\u094d\u0930\u0924\u093f\u0930\u094b\u0927 (<\/span>resistance)\u00a0\u0936\u0942\u0928\u094d\u092f \u0939\u094b \u091c\u093e\u0924\u093e \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) 4k\u00a0\u092a\u0930<\/span>\u00a0\u2713<\/span><\/b>
\n(B) 10k\u00a0\u092a\u0930<\/span>
\n(C) 20k\u00a0\u092a\u0930<\/span>
\n(D) 25k\u00a0\u092a\u0930<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/p>\n

13.\u00a0\u0938\u094b\u0932\u0930 \u0938\u0947\u0932 \u092e\u0947\u0902 \u0909\u092a\u092f\u094b\u0917 \u0915\u093f\u090f \u091c\u093e\u0928\u0947 \u0935\u093e\u0932\u0947 \u092a\u0926\u093e\u0930\u094d\u0925 \u092e\u0947\u0902 \u0939\u094b\u0924\u093e \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) Cs
\n(B) Si<\/span>\u00a0\u2713<\/span><\/b>
\n(C) Sn
\n(D) Ti<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

14. Transistor\u00a0\u092c\u0928\u093e\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0938\u093e\u092e\u093e\u0928\u094d\u092f\u0924\u0903 \u0928\u093f\u092e\u094d\u0928 \u0924\u0924\u094d\u0935\u094b\u0902 \u0915\u093e \u0909\u092a\u092f\u094b\u0917 \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948:<\/span><\/span><\/b><\/span><\/p>\n

(A) C\u00a0\u0924\u0925\u093e<\/span>\u00a0Si
\n(B) Ga\u00a0\u0924\u0925\u093e<\/span>\u00a0In
\n(C) P\u00a0\u0924\u0925\u093e<\/span>\u00a0As
\n(D) Si\u00a0<\/span>\u0924\u0925\u093e<\/span>\u00a0Ge\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

15.\u00a0\u0905\u0923\u0941\u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u092f\u094c\u0917\u093f\u0915 (<\/span>Paramagnetic compound)\u00a0\u092e\u0947\u0902 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0939\u094b\u0924\u0947 \u0939\u0948\u0902:<\/span><\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0938\u093e\u091d\u093e<\/span>
\n(B)\u00a0<\/span>\u0905\u092f\u0941\u0917\u094d\u092e\u093f\u0924<\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u092f\u0941\u0917\u094d\u092e\u093f\u0924<\/span>
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/p>\n

16.\u00a0\u0915\u0948\u0932\u0938\u093f\u092f\u092e \u092b\u094d\u0932\u094b\u0930\u093e\u0907\u0921 (<\/span>CaF2)\u00a0\u0915\u0947 \u0938\u0902\u0930\u091a\u0928\u093e \u092e\u0947\u0902 \u0927\u0928\u093e\u092f\u0928 \u0924\u0925\u093e \u090b\u0923\u093e\u092f\u0928 \u0915\u093e \u0915\u094b\u0906\u0930\u094d\u0921\u093f\u0928\u0947\u0936\u0928 \u0938\u0902\u0916\u094d\u092f\u093e (<\/span>Coordination number)\u00a0\u0915\u094d\u0930\u092e\u0936\u0903 \u0939\u094b\u0924\u093e \u0939\u0948\u0964<\/span><\/span><\/b><\/span><\/p>\n

(A) 6\u00a0\u0924\u0925\u093e<\/span>\u00a06
\n(B) 8\u00a0<\/span>\u0924\u0925\u093e<\/span>\u00a04\u00a0\u2713<\/span><\/b>
\n(C) 4\u00a0\u0914\u0930<\/span>\u00a04
\n(D) 4\u00a0\u0914\u0930<\/span>\u00a08<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

17.\u00a0\u0927\u093e\u0924\u0941 \u0906\u092f\u0928 \u0915\u0947 \u0930\u0902\u0917\u0940\u0928 \u091c\u094d\u0935\u093e\u0932\u093e \u0932\u094c \u0915\u093e \u0915\u093e\u0930\u0923 \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u092b\u094d\u0930\u0947\u0902\u0915\u0947\u0932 \u0926\u094b\u0937<\/span>
\n(B)\u00a0\u0936\u0949\u091f\u094d\u0915\u0940 \u0926\u094b\u0937<\/span>
\n(C)\u00a0\u0927\u093e\u0924\u0941 \u0915\u0940 \u0915\u092e\u0940 \u0915\u093e \u0926\u094b\u0937<\/span>
\n(D)\u00a0<\/span>\u0927\u093e\u0924\u0941 \u0905\u0927\u093f\u0915\u0924\u093e \u0915\u093e \u0926\u094b\u0937<\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

18.\u00a0\u0917\u094d\u0930\u0947\u092b\u093e\u0907\u091f \u0939\u0948<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0906\u0923\u094d\u0935\u093f\u0915 \u0920\u094b\u0938<\/span>
\n(B)\u00a0<\/span>\u0938\u0939\u0938\u0902\u092f\u094b\u091c\u0915 \u0920\u094b\u0938<\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u0906\u092f\u0928\u093f\u0915 \u0920\u094b\u0938<\/span>
\n(D)\u00a0\u0927\u093e\u0924\u094d\u0935\u093f\u0915 \u0920\u094b\u0938<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

19.\u00a0\u092b\u094d\u0930\u0947\u0902\u0915\u0932 \u0924\u0925\u093e \u0936\u0949\u091f\u094d\u0915\u0940 \u0926\u094b\u0928\u094b\u0902 \u0926\u094b\u0937 \u0939\u094b\u0924\u0947 \u0939\u0948\u0902<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) NaCl
\n(B) AgCl
\n(C) AgBr<\/span>\u00a0\u2713<\/span><\/b>
\n(D) KCI<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

20.\u00a0\u0936\u0941\u0926\u094d\u0927 \u0938\u093f\u0932\u093f\u0915\u0949\u0928 \u0915\u094b \u092b\u093e\u0938\u094d\u092b\u094b\u0930\u0938 \u0938\u0947 \u0921\u094b\u092a \u0915\u0930\u0928\u0947 \u0938\u0947<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0927\u093e\u0924\u094d\u0935\u093f\u0915 \u0938\u0941\u091a\u093e\u0932\u0915<\/span>
\n(B)\u00a0\u0915\u0941\u091a\u093e\u0932\u0915<\/span>
\n(C) n-<\/span>\u00a0\u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u093e \u0905\u0930\u094d\u0926\u094d\u0927\u091a\u093e\u0932\u0915<\/span>\u00a0\u2713<\/span><\/b>
\n(D) p-\u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u093e \u0905\u0930\u094d\u0926\u094d\u0927\u091a\u093e\u0932\u0915<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

21.\u00a0\u0938\u0939\u0938\u0902\u092f\u094b\u091c\u0915 (<\/span>covalent)\u00a0\u0920\u094b\u0938 \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0930\u0949\u0915 \u0938\u093e\u0932\u094d\u091f<\/span>
\n(B)\u00a0\u092c\u0930\u094d\u092b<\/span>
\n(C)\u00a0<\/span>\u0915\u094d\u0935\u093e\u0930\u094d\u091c<\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0\u0936\u0941\u0937\u094d\u0915 \u092c\u0930\u094d\u092b (<\/span>dry ice)<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

22.\u00a0\u0906\u092f\u094b\u0921\u093f\u0928 \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0906\u092f\u0928\u093f\u0915 \u0920\u094b\u0938<\/span>
\n(B)\u00a0\u092a\u0930\u092e\u093e\u0923\u0935\u093f\u0915 \u0920\u094b\u0938<\/span>
\n(C)\u00a0<\/span>\u0906\u0923\u0935\u093f\u0915 \u0920\u094b\u0938<\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0\u0938\u0939\u0938\u0902\u092f\u094b\u091c\u0928 \u0920\u094b\u0938<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

23.\u00a0\u0920\u094b\u0938<\/span>\u00a0AICL,\u00a0\u092e\u0947\u0902<\/span>\u00a0AI\u00a0\u0915\u0940<\/span>\u00a0Coordination number\u00a0\u0939\u094b\u0924\u0940 \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) 2
\n(B) 4
\n(C) 6<\/span>\u00a0\u2713<\/span><\/b>
\n(D) 8<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

24. NaCl\u00a0\u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932 \u092e\u0947\u0902 \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915<\/span>\u00a0cr\u0906\u092f\u0928 \u0915\u093f\u0924\u0928\u0947<\/span>\u00a0Na\u2019\u00a0\u0906\u092f\u0928 \u0938\u0947 \u0918\u093f\u0930\u093e \u0930\u0939\u0924\u093e \u0939\u0948<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A) 4
\n(B) 6<\/span>\u00a0\u2713<\/span><\/b>
\n(C) 1
\n(D) 2<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

25.\u00a0\u091c\u093f\u0902\u0915 \u092c\u094d\u0932\u0948\u0923\u094d\u0921 (<\/span>Zns)\u00a0\u092e\u0947\u0902 \u0938\u0932\u094d\u092b\u093e\u0907\u0921 \u0906\u092f\u0928 (<\/span>S\u2013<\/sup>)\u00a0\u0915\u0940 \u0935\u094d\u092f\u0935\u0938\u094d\u0925\u093e \u0939\u0948<\/span><\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0938\u0930\u0932 \u0915\u094d\u092f\u0942\u092c\u093f\u0915<\/span>
\n(B)\u00a0hcp<\/i>
\n(C)\u00a0bcc<\/i>
\n(D)\u00a0fcc<\/i><\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

26. 8 : 8\u00a0\u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u0940 \u092a\u0948\u0915\u093f\u0902\u0917 \u0909\u092a\u0938\u094d\u0925\u093f\u0924 \u0939\u0948 \u0964<\/span><\/span><\/b><\/span><\/p>\n

(A) MgF2<\/sub>
\n(B) Cs<\/sub>CL<\/span>\u00a0\u2713<\/span><\/b>
\n(C) KCl
\n(D) Naci<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

27.\u00a0\u090f\u0915 \u0906\u092f\u0928\u093f\u0915 \u092f\u094c\u0917\u093f\u0915 \u092e\u0947\u0902<\/span>\u00a0\u2018A\u2019 ion\u00a0\u0907\u0915\u093e\u0908 \u0938\u0947\u0932 \u0915\u0947 \u0918\u0928 \u0915\u0947 \u0915\u094b\u0923\u094b\u0902 \u092a\u0930 \u0939\u0948 \u0924\u0925\u093e<\/span>\u00a0\u2018B\u2019ion\u00a0\u092b\u0932\u0915\u094b\u0902 \u0915\u0947 \u0915\u0947\u0928\u094d\u0926\u094d\u0930\u094b\u0902 \u092a\u0930 \u0939\u0948<\/span>,\u00a0\u0907\u0938 \u092f\u094c\u0917\u093f\u0915 \u0915\u093e \u0938\u0930\u0932\u0924\u092e \u0938\u0942\u0924\u094d\u0930 \u0939\u094b\u0917\u093e\u0964<\/span><\/span><\/b><\/span><\/p>\n

(A) AB
\n(B) A2<\/sub>B
\n(C) AB3<\/sub><\/span>\u00a0\u2713<\/span><\/b>
\n(D) A3<\/sub>B<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

28.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0915\u094c\u0928 \u092a\u094d\u0930\u0924\u093f\u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0939\u0948<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A) Cr3+<\/sup>
\n(B) V2+<\/sup>
\n(C) Sc3+<\/sup><\/span>\u00a0\u2713<\/span><\/b>
\n(D) Ti3+<\/sup><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

29.\u00a0\u090f\u0915 \u0927\u093e\u0924\u0941 \u091c\u093f\u0938\u0915\u0940 \u092c\u0928\u093e\u0935\u091f \u0939\u0947\u0915\u094d\u0938\u093e\u0917\u094b\u0928\u0932 \u0915\u094d\u0932\u094b\u091c \u092a\u0948\u0915\u094d\u0921 \u0906\u0915\u0943\u0924\u093f \u0939\u0948 \u0909\u0938\u0915\u0940 \u0938\u092e\u0928\u094d\u0935\u092f\u0928 \u0938\u0902\u0916\u094d\u092f\u093e \u0939\u094b\u0924\u0940 \u0939\u0948<\/span>?<\/span><\/b><\/span><\/p>\n

(A) 6
\n(B) 12<\/span>\u00a0\u2713<\/span><\/b>
\n(C) 8
\n(D) 4<\/span><\/span><\/p>\n

\u00a0<\/span><\/p>\n

30.\u00a0\u0938\u0926\u0943\u0936 \u092a\u0930\u092e\u093e\u0923\u0941 \u0935\u093e\u0932\u0947 \u090f\u0915 \u092b\u0932\u0915 \u0915\u0947\u0928\u094d\u0926\u094d\u0930\u093f\u0924 \u0918\u0928\u093e\u0915\u093e\u0930 \u0907\u0915\u093e\u0908 \u0938\u0947\u0932 \u092e\u0947\u0902 \u091a\u0924\u0941\u0937\u094d\u092b\u0932\u0915 \u0930\u093f\u0915\u094d\u0924\u093f\u092f\u094b\u0902 \u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) 8\u00a0\u2713<\/span><\/b>
\n(B) 4
\n(C) 6
\n(C) 6
\n(D) 12<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

31. BCC\u00a0\u0915\u093e<\/span>\u00a0Coordination number\u00a0\u0939\u094b\u0924\u093e \u0939\u0948\u0964<\/span><\/span><\/b><\/span><\/p>\n

(A) 8\u00a0\u2713<\/span><\/b>
\n(B) 6
\n(C) 4
\n(D) 12<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

32.\u00a0\u091c\u093f\u0902\u0915 \u092c\u094d\u0932\u0948\u0923\u094d\u0921 (<\/span>zinc blande) Zns,\u00a0\u092e\u0947\u0902<\/span>\u00a0Zn\u00a0\u0915\u093e<\/span>\u00a0Coordination number\u00a0\u0939\u0948\u0964<\/span><\/span><\/b><\/span><\/p>\n

(A) 6
\n(B) 4<\/span>\u00a0\u2713<\/span><\/b>
\n(C) 8
\n(D) 12<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

33.\u00a0\u090f\u0915 \u0927\u093e\u0924\u0941 \u0915\u093e \u0930\u0935\u093e\u0915\u0930\u0923 \u0939\u0947\u0915\u094d\u0938\u093e\u0917\u094b\u0928\u0932 \u0915\u094d\u0932\u094b\u091c \u092a\u0948\u0915 (<\/span>hep)\u00a0\u0938\u0902\u0930\u091a\u0928\u093e \u092e\u0947\u0902 \u0939\u094b\u0924\u093e \u0939\u0948<\/span>,\u00a0\u0924\u094b \u0927\u093e\u0924\u0941 \u0915\u0940 \u0915\u0949\u0930\u094d\u0921\u093f\u0928\u0947\u0936\u0928 \u0938\u0902\u0916\u094d\u092f\u093e \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) 12\u00a0\u2713<\/span><\/b>
\n(B) 8
\n(C) 4
\n(D) 6<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

34.\u00a0\u0915\u093f\u0938 \u092f\u0942\u0928\u093f\u091f \u0938\u0947\u0932 \u092e\u0947\u0902 \u092a\u0930\u092e\u093e\u0923\u0941\u0913\u0902 \u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e \u0938\u092c\u0938\u0947 \u0905\u0927\u093f\u0915 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964<\/span><\/span><\/b><\/span><\/p>\n

(A)\u00a0bcc<\/i>
\n(B)\u00a0hcp<\/sub>
\n(C)\u00a0fcc<\/i><\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0\u0915\u094d\u092f\u0942\u092c\u093f\u0915<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

35.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u090f\u0928\u0940\u0938\u094b\u091f\u094d\u0930\u0949\u092a\u0940 (<\/span>Anisotropy)\u00a0\u0926\u0930\u094d\u0936\u093e\u0924\u093e \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0915\u093e\u0901\u091a<\/span>
\n(B)\u00a0<\/span>\u092c\u0947\u0930\u093f\u092f\u092e \u0915\u094d\u0932\u094b\u0930\u093e\u0907\u0921<\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u0932\u0915\u0921\u093c\u0940<\/span>
\n(D)\u00a0\u092a\u0947\u092a\u0930<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

36.\u00a0\u0915\u094d\u0937\u093e\u0930\u0915\u0940\u092f \u0927\u093e\u0924\u0941 \u0939\u0948\u0932\u093e\u0907\u0921\u094b\u0902 \u0915\u0947 \u0930\u0902\u0917\u0940\u0928 \u0939\u094b\u0928\u0947 \u0915\u0940 \u0938\u093e\u092e\u093e\u0928\u094d\u092f \u0915\u093e\u0930\u0923 \u0939\u0948 :<\/span><\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0905\u0928\u094d\u0924\u0930\u093e\u0915\u093e\u0936\u0940 \u0938\u094d\u0925\u0932<\/span>
\n(B) F-<\/span>\u0915\u0947\u0928\u094d\u0926\u094d\u0930<\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u0936\u0949\u091f\u094d\u0915\u0940 \u0926\u094b\u0937<\/span>
\n(D)\u00a0\u092b\u094d\u0930\u0947\u0902\u0915\u0947\u0932 \u0926\u094b\u0937<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

37.\u00a0\u0905\u0928\u094d\u0924\u0903 \u0915\u0947\u0928\u094d\u0926\u094d\u0930\u093f\u0924 \u0918\u0928\u0940\u092f \u090f\u0915\u0915 \u0915\u094b\u0937\u094d\u0920\u093f\u0915\u093e \u092e\u0947\u0902 \u092e\u0941\u0915\u094d\u0924 \u0926\u093f\u0915\u094d\u0938\u094d\u0925\u093e\u0928 \u0915\u0940 \u092a\u094d\u0930\u0924\u093f\u0936\u0924\u0924\u093e \u0939\u0948 :<\/span><\/span><\/b><\/span><\/p>\n

(A) 34%
\n(B) 28%
\n(C) 30%
\n(D) 32%<\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

38. (Na2<\/sub>0)\u00a0\u092e\u0947\u0902 \u0938\u094b\u0921\u093f\u092f\u092e \u0915\u0940 \u0915\u0940\u0906\u0930\u094d\u0921\u093f\u0928\u0947\u0936\u0928 \u0938\u0902\u0916\u094d\u092f\u093e \u0915\u093f\u0924\u0928\u0940 \u0939\u0948<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A) 6
\n(B) 4
\n(C) 8<\/span>\u2713<\/span><\/b>
\n(D) 2<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

39.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0915\u094c\u0928 \u092c\u0947\u0930\u0935\u093e\u0926\u093e\u0930 \u0920\u094b\u0938 \u0939\u0948<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A) Graphite
\n(B) Quartz Glass (SiO,)<\/span>\u2713<\/span><\/b>
\n(C) Chrome Alum
\n(D) Silicon Carbide (Sic)<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

40.\u00a0\u0915\u093f\u0938\u0940 \u092b\u0932\u0915 \u0915\u0947\u0928\u094d\u0926\u094d\u0930\u093f\u0924 \u0918\u0928\u0940\u092f \u091c\u093e\u0932\u0915 \u092e\u0947\u0902 \u090f\u0915 \u090f\u0915\u0915 \u0915\u094b\u0937\u094d\u0920\u093f\u0915 \u0915\u093f\u0924\u0928\u0947 \u092b\u0932\u0915\u094b\u0902 \u0926\u094d\u0935\u093e\u0930\u093e \u0938\u092e\u093e\u0928 \u0930\u0942\u092a \u0938\u0947 \u0938\u0939\u092d\u093e\u091c\u093f\u0924 \u0939\u094b\u0924\u0940 \u0939\u0948<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A) 2
\n(B) 4
\n(C) 6<\/span>\u2713<\/span><\/b>
\n(D) 8<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

41. x\u00a0\u090f\u0935\u0902<\/span>\u00a0Y\u0924\u0924\u094d\u0924\u094d\u0935\u094b\u0902 \u0938\u0947 \u092c\u0928\u093e \u090f\u0915 \u092f\u094c\u0917\u093f\u0915 \u090f\u0915 \u0910\u0938\u0940 \u0918\u0928\u0940\u092f \u0938\u0902\u0930\u091a\u0928\u093e \u092e\u0947\u0902 \u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932\u0940\u0915\u0943\u0924 \u0939\u094b\u0924\u093e \u0939\u0948 \u091c\u093f\u0938\u092e\u0947\u0902<\/span>\u00a0x\u00a0\u0915\u0947 \u092a\u0930\u092e\u093e\u0923\u0941 \u0918\u0928 \u0915\u0947 \u0915\u094b\u0928\u094b\u0902 \u092a\u0930 \u0914\u0930<\/span>\u00a0Y\u00a0\u0915\u0947 \u092a\u0930\u092e\u093e\u0923\u0941 \u092b\u0932\u0915 \u0915\u0947\u0928\u094d\u0926\u094d\u0930\u094b\u0902 \u092a\u0930 \u0939\u094b\u0924\u0947 \u0939\u0948\u0902\u0964 \u0907\u0938 \u092f\u094c\u0917\u093f\u0915 \u0915\u093e \u0938\u0942\u0924\u094d\u0930 \u0939\u0948 :<\/span><\/span><\/b><\/span><\/p>\n

(A) XY3<\/sub>\u00a0\u2713<\/span><\/b>
\n(B) X3<\/sub>Y
\n(C) XY
\n(D) XY2<\/sub><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

42.\u00a0\u090f\u0932\u0941\u092e\u093f\u0928\u093f\u092f\u092e (\u092a\u0930\u092e\u093e\u0923\u0941 \u0926\u094d\u0930\u0935\u094d\u092f =<\/span>27)\u00a0\u0915\u093e \u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932\u0940\u0915\u0930\u0923<\/span>\u00a04\u00c5\u00a0\u0915\u094b\u0930 \u0915\u0940 \u0932\u092e\u094d\u092c\u093e\u0908 \u0935\u093e\u0932\u0947 \u0918\u0928\u0940\u092f<\/span>\u00a0\u0924\u0902\u0924\u094d\u0930 \u092e\u0947\u0902 \u0939\u094b\u0924\u093e \u0939\u0948\u0964 \u0907\u0938\u0915\u093e \u0918\u0928\u0924\u094d\u0935<\/span>\u00a02.7g\/cm3<\/sup>\u00a0\u0907\u0938 \u090f\u0915\u0915 \u0915\u094b\u0937\u094d\u0920\u093f\u0915\u093e \u0915\u093e \u092a\u094d\u0930\u0915\u093e\u0930 \u0939\u0948<\/span><\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0938\u0930\u0932<\/span>
\n(B)\u00a0<\/span>\u092b\u0932\u0915 \u0915\u0947\u0928\u094d\u0926\u094d\u0930\u093f\u0924<\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u0905\u0902\u0924\u0903 \u0915\u0947\u0928\u094d\u0926\u094d\u0930\u093f\u0924<\/span>
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

43.\u00a0\u090f\u0915 \u0906\u092f\u0928\u093f\u0915 \u092f\u094c\u0917\u093f\u0915 \u0915\u0940 \u090f\u0915\u0915 \u0915\u094b\u0937\u094d\u0920\u093f\u0915 \u092e\u0947\u0902 \u0918\u0928 \u0915\u0947 \u0915\u094b\u0928\u094b\u0902 \u092a\u0930<\/span>\u00a0A\u00a0\u0915\u0947 \u0906\u092f\u0928 \u0914\u0930 \u0918\u0928 \u0915\u0947 \u092b\u0932\u0915\u094b\u0902 \u0915\u0947 \u0915\u0947\u0928\u094d\u0926\u094d\u0930\u094b\u0902 \u092a\u0930<\/span>\u00a0B\u00a0\u0915\u0947 \u0906\u092f\u0928 \u0939\u0948\u0902\u0964 \u092f\u0939 \u092f\u094c\u0917\u093f\u0915 \u0915\u093e \u092e\u0942\u0932\u093e\u0928\u0941\u092a\u093e\u0924\u0940 \u0938\u0942\u0924\u094d\u0930 \u0939\u094b\u0917\u093e-<\/span><\/span><\/b><\/span><\/p>\n

(A) AB
\n(B) A2<\/sub>B
\n(C) AB3<\/sub><\/span>\u00a0\u2713<\/span><\/b>
\n(D) A3<\/sub>B<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

44. Ge\u00a0\u0927\u093e\u0924\u0941 \u0915\u094b \u0925\u094b\u0921\u093c\u0947 \u0938\u0947<\/span>\u00a0In (\u0907\u0923\u094d\u0921\u093f\u092f\u092e) \u0938\u0947 \u0921\u094b\u092a\u093f\u0924 \u0915\u0930\u0928\u0947 \u092a\u0930 \u0939\u092e\u0947\u0902 \u092a\u094d\u0930\u093e\u092a\u094d\u0924 \u0939\u094b\u0924\u093e \u0939\u0948 :<\/span><\/span><\/b><\/span><\/p>\n

(A)\u00a0n<\/i>–\u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u093e \u0905\u0930\u094d\u0927\u091a\u093e\u0932\u0915<\/span>
\n(B)\u00a0p<\/i>–<\/span>\u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u093e \u0905\u0930\u094d\u0927\u091a\u093e\u0932\u0915<\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u0935\u093f\u0926\u094d\u092f\u0941\u0924\u094d\u0930\u094b\u0927\u0940<\/span>
\n(D)\u00a0\u0926\u093f\u0937\u094d\u091f\u0915\u093e\u0930\u0940<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

45.\u00a0\u091c\u092c \u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932 \u092e\u0947\u0902 \u090b\u0923\u093e\u092f\u0928\u093f\u0915 \u0930\u093f\u0915\u094d\u0924\u093f\u092f\u094b\u0902 (<\/span>valency)\u00a0\u0926\u094d\u0935\u093e\u0930\u093e \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u092b\u0902\u0938\u093e \u0932\u093f\u092f\u0947 \u091c\u093e\u0924\u0947 \u0939\u0948 \u0924\u094b \u0924\u094d\u0930\u093f\u091f\u093f \u0915\u0939\u0932\u093e\u0924\u0940 \u0939\u0948 :<\/span><\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0936\u0949\u091f\u0915\u0940 \u0926\u094b\u0937<\/span>
\n(B)\u00a0\u092b\u094d\u0930\u0947\u0902\u0915\u0932 \u0926\u094b\u0937<\/span>
\n(C)\u00a0\u0938\u094d\u091f\u0949\u0907\u0915\u093f\u092f\u094b\u092e\u0940\u091f\u094d\u0930\u0940<\/span>
\n(D)\u0192-<\/span>\u0915\u0947\u0928\u094d\u0926\u094d\u0930<\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/p>\n

46.\u00a0\u092f\u0926\u093f<\/span>\u00a0NaCI\u00a0\u091c\u093e\u0932\u0915 \u092e\u0947\u0902<\/span>\u00a0Na+\u00a0<\/sup>\u090f\u0935\u0902<\/span>\u00a0c\u2013<\/sup>\u0906\u092f\u0928\u094b\u0902 \u0915\u0947 \u092c\u0940\u091a \u0915\u0940 \u0926\u0942\u0930\u0940<\/span>\u00a0Xpm\u00a0\u0939\u094b \u0924\u094b \u090f\u0915\u0915 \u0915\u094b\u0937\u094d\u0920\u093f\u0915\u093e \u0915\u0947 \u0915\u094b\u0930 \u0915\u0940 \u0932\u092e\u094d\u092c\u093e\u0908 \u0939\u094b\u0917\u0940 :<\/span><\/span><\/b><\/span><\/p>\n

(A) 4\/Xpm
\n(B) X\/4pm
\n(C)X\/2pm
\n(D) 2Xpm<\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

47. Na\u00a0\u090f\u0935\u0902<\/span>\u00a0Mg\u00a0\u0915\u093e \u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932\u0940\u0915\u0930\u0923 \u0915\u094d\u0930\u092e\u0936\u0903<\/span>\u00a0bcc\u00a0\u090f\u0935\u0902<\/span>\u00a0fcc\u00a0\u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u0947 \u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932\u094b\u0902 \u092e\u0947\u0902 \u0939\u094b\u0924\u093e \u0939\u0948\u0964 \u0909\u0928\u0915\u0947 \u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932\u094b\u0902 \u092e\u0947\u0902 \u092a\u0930\u092e\u093e\u0923\u0941\u0913\u0902 \u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e \u0939\u0948:<\/span><\/span><\/b><\/span><\/p>\n

(A) 4\u00a0\u090f\u0935\u0902<\/span>\u00a02
\n(B) 9\u00a0\u090f\u0935\u0902<\/span>\u00a014
\n(C) 14\u00a0\u090f\u0935\u0902<\/span>\u00a09
\n(D) 2\u00a0<\/span>\u090f\u0935\u0902<\/span>\u00a04\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

48.\u00a0\u092f\u0926\u093f \u0939\u092e \u091c\u0930\u094d\u092e\u0947\u0928\u093f\u092f\u092e \u0915\u0947 \u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932 \u091c\u093e\u0932\u0915 \u092e\u0947\u0902 \u092a\u0902\u091a \u0938\u0902\u092f\u094b\u091c\u0940 \u0905\u0936\u0941\u0926\u094d\u0927\u093f \u092e\u093f\u0932\u093e\u0924\u0947 \u0939\u0948\u0902 \u091c\u094b \u0928\u093f\u0930\u094d\u092e\u093f\u0924 \u0905\u0930\u094d\u0926\u094d\u0927-\u091a\u093e\u0932\u0915 \u0915\u093e \u092a\u094d\u0930\u0915\u093e\u0930 \u0939\u094b\u0917\u093e :<\/span><\/span><\/b><\/span><\/p>\n

(A)\u00a0p\u2013<\/i>\u092a\u094d\u0930\u0915\u093e\u0930<\/span>
\n(B)\u00a0n-<\/i><\/span>\u092a\u094d\u0930\u0915\u093e\u0930<\/span>\u00a0\u2713<\/span><\/b>
\n(C) (A)\u00a0\u0914\u0930(<\/span>B)\u00a0\u0926\u094b\u0928\u094b\u0902<\/span>
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

49.\u00a0\u0905\u0902\u0924\u0903\u0915\u0947\u0928\u094d\u0926\u094d\u0930\u093f\u0924 (<\/span>Body centred)\u00a0\u092a\u0930\u092e\u093e\u0923\u0941 \u0915\u0940 \u0915\u094b\u0906\u0930\u094d\u0921\u093f\u0928\u0947\u0936\u0928 \u0938\u0902\u0916\u094d\u092f\u093e (<\/span>coordination number)\u00a0\u0939\u094b\u0924\u0940 \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) 4
\n(B) 6
\n(C) 8<\/span>\u2713<\/span><\/b>
\n(D) 12<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

50.\u00a0\u0938\u0930\u094d\u0935\u093e\u0927\u093f\u0915 \u092b\u0947\u0930\u094b\u092e\u0948\u0917\u0928\u0947\u091f\u093f\u091c\u094d\u092e (<\/span>Ferromagnetism)\u00a0\u092a\u093e\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) Fe\u00a0\u2713<\/span><\/b>
\n(B) Ni
\n(C) CO
\n(D)\u00a0\u0907\u0938\u092e\u0947\u0902 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

51.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u090f\u0928\u0940\u0938\u094b\u091f\u094d\u0930\u0949\u092a\u0940 (<\/span>Anisotropy)\u00a0\u0926\u0930\u094d\u0936\u093e\u0924\u093e \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0915\u093e\u0901\u091a<\/span>
\n(B)\u00a0<\/span>\u092c\u0947\u0930\u093f\u092f\u092e \u0915\u094d\u0932\u094b\u0930\u093e\u0907\u0921<\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u0932\u0915\u0921\u093c\u0940<\/span>
\n(D)\u00a0\u092a\u0947\u092a\u0930<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

52.\u00a0\u0938\u094b\u0921\u093f\u092f\u092e \u0915\u094d\u0932\u094b\u0930\u093e\u0907\u0921 \u0915\u0940 \u0938\u0902\u0930\u091a\u0928\u093e \u0939\u094b\u0924\u0940 \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0905\u0928\u094d\u0924\u0903 \u0915\u0947\u0928\u094d\u0926\u094d\u0930\u093f\u0924 \u0918\u0928\u0940\u092f \u091c\u093e\u0932\u0915 (<\/span>Body centred cubic)
\n(B)\u00a0<\/span>\u092b\u0932\u0915 \u0915\u0947\u0928\u094d\u0926\u094d\u0930\u093f\u0924 \u0918\u0928\u0940\u092f \u091c\u093e\u0932\u0915 (<\/span>face centred cubic)\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u0938\u092e\u0924\u0932\u0940\u092f \u0935\u0930\u094d\u0917\u093e\u0915\u093e\u0930 (<\/span>square planer)
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

53. Fe3<\/sub>O4<\/sub>\u00a0\u0920\u094b\u0938 \u0939\u094b\u0924\u093e \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0905\u0928\u0941\u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f (<\/span>Paramagnetic)
\n(B)\u00a0\u092a\u094d\u0930\u0924\u093f\u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f (<\/span>Diamagnetic)
\n(C)\u00a0<\/span>\u0932\u094c\u0939\u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f (<\/span>Ferromagnetic)\u00a0\u2713<\/span><\/b>
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

54.\u00a0\u0915\u093f\u0938 \u0905\u0923\u0941 \u0915\u093e \u0926\u094d\u0935\u093f\u0927\u094d\u0930\u0941\u0935 \u0906\u0918\u0942\u0930\u094d\u0923 \u0936\u0942\u0928\u094d\u092f \u0939\u0948<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A) NF3<\/sub>
\n(B) BF3<\/sub><\/span>\u2713<\/span><\/b>
\n(C) Clo2<\/sub>
\n(D) CH2<\/sub>CI2<\/sub><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

55. LiCl, NaCl\u00a0\u0914\u0930<\/span>\u00a0KCI\u00a0\u0915\u0947 \u0935\u093f\u0932\u092f\u0928 \u0915\u093e \u0905\u0928\u0928\u094d\u0924 \u0924\u0928\u0941\u0924\u093e \u092a\u0930 \u0938\u092e\u0924\u0941\u0932\u094d\u092f\u093e\u0902\u0915 \u0938\u0941\u091a\u093e\u0932\u0915\u0924\u093e \u0915\u093e \u0938\u0939\u0940 \u0915\u094d\u0930\u092e \u0939\u0948-<\/span><\/span><\/b><\/span><\/p>\n

(A) LiCl > NaCl > KCI
\n(B) KCI > NaCl > LiCl<\/span>\u2713<\/span><\/b>
\n(C) NaCl > KCI > LiCl
\n(D) LiCl > KCI > NaCl<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

56. bcc\u00a0\u0907\u0915\u093e\u0908 \u0938\u0947\u0932 \u092e\u0947\u0902 \u092e\u0941\u0915\u094d\u0924 \u0916\u093e\u0932\u0940 \u091c\u0917\u0939 \u0915\u093e \u092a\u094d\u0930\u0924\u093f\u0936\u0924 \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) 32%\u00a0\u2713<\/span><\/b>
\n(B) 34%
\n(C) 28%
\n(D) 30%<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

57. \u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0915\u094c\u0928-\u0938\u0947 \u091c\u094b\u0921\u093c\u0947 \u092e\u0947\u0902 \u0915\u094d\u0930\u092e\u0936\u0903 \u091a\u0924\u0941\u0937\u094d\u092b\u0932\u0915\u0940\u092f \u0935\u0949\u092f\u0921 \u0914\u0930 \u0905\u0937\u094d\u091f\u092b\u0932\u0915\u0940\u092f \u0935\u0949\u092f\u0921 \u0939\u094b\u0924\u093e \u0939\u0948<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A) bcc\u00a0\u0914\u0930<\/span>\u00a0fcc
\n(B) hep\u00a0\u0914\u0930 \u0938\u093f\u092e\u094d\u092a\u0932 \u0915\u094d\u092f\u0942\u092c\u093f\u0915<\/span>
\n(C) hcp\u00a0<\/span>\u0914\u0930<\/span>\u00a0ccp\u00a0\u2713<\/span><\/b>
\n(D) bcc\u00a0\u0914\u0930<\/span>\u00a0hep<\/span><\/span><\/p>\n

\u00a0<\/span><\/p>\n

58.\u00a0\u092a\u094b\u091f\u0948\u0936\u093f\u092f\u092e \u0915\u093e \u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932\u0940\u0915\u0930\u0923 \u0939\u094b\u0924\u093e \u0939\u0948 :<\/span><\/span><\/b><\/span><\/p>\n

(A)\u00a0\u092b\u0932\u0915 \u0915\u0947\u0928\u094d\u0926\u094d\u0930\u093f\u0924 \u0918\u0928\u0940\u092f \u091c\u093e\u0932\u0915 \u092e\u0947\u0902<\/span>
\n(B)\u00a0<\/span>\u0905\u0902\u0924\u0903 \u0915\u0947\u0928\u094d\u0926\u094d\u0930\u093f\u0924 \u0918\u0928\u0940\u092f \u091c\u093e\u0932\u0915 \u092e\u0947\u0902<\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u0938\u0930\u0932 \u0918\u0928\u0940\u092f \u091c\u093e\u0932\u0915 \u092e\u0947\u0902<\/span>
\n(D)\u00a0\u0935\u093f\u0937\u092e\u0932\u0902\u092c\u093e\u0915\u094d\u0937 \u091c\u093e\u0932\u0915 \u092e\u0947\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

59.\u00a0\u0935\u093f\u092d\u093f\u0928\u094d\u0928 \u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u0947 \u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932\u094b\u0902 \u092e\u0947\u0902 \u091c\u093e\u0932\u0915 \u0935\u094d\u092f\u0935\u0938\u094d\u0925\u093e \u0915\u0940 \u0915\u0941\u0932 \u0938\u0902\u0916\u094d\u092f\u093e \u0939\u094b\u0924\u0940 \u0939\u0948 :<\/span><\/span><\/b><\/span><\/p>\n

(A) 7
\n(B) 3
\n(C) 10
\n(D) 14<\/span>\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

60.\u00a0\u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932 \u091c\u093e\u0932\u0915 \u092e\u0947\u0902 \u092a\u094d\u0930\u0924\u093f \u092a\u0930\u092e\u093e\u0923\u0941 \u0905\u0937\u094d\u091f\u092b\u0932\u0915\u0940\u092f \u0930\u093f\u0915\u094d\u0924\u093f\u0915\u093e\u0913\u0902 \u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e \u0939\u094b\u0924\u0940 \u0939\u0948 :<\/span><\/span><\/b><\/span><\/p>\n

(A) 1
\n(B) 2<\/span>\u2713<\/span><\/b>
\n(C) 4
\n(D) 8<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

61.\u00a0\u0938\u094b\u0921\u093f\u092f\u092e \u0915\u094d\u0932\u094b\u0930\u093e\u0907\u0921 \u0915\u0940 \u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932 \u0938\u0902\u0930\u091a\u0928\u093e \u092e\u0947\u0902<\/span>\u00a0CI\u0906\u092f\u0928\u094d\u0938 \u0915\u0940 \u0935\u094d\u092f\u0935\u0938\u094d\u0925\u093e \u0939\u094b\u0924\u0940 \u0939\u0948:<\/span><\/span><\/b><\/span><\/p>\n

(A)\u00a0fcc<\/i>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0bcc<\/i>
\n(C)\u00a0fec<\/i>\u00a0\u0914\u0930<\/span>\u00a0bcc<\/i>\u00a0\u0926\u094b\u0928\u094b\u0902<\/span>
\n(D)\u00a0\u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u0915\u094b\u0908 \u0928\u0939\u0940\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

62.\u00a0\u0938\u094b\u0921\u093f\u092f\u092e<\/span>\u00a0Na+<\/sup>\u00a0\u0906\u092f\u0928 \u0915\u093e \u0938\u0939\u0938\u0902\u092f\u094b\u091c\u0928 \u0938\u0902\u0916\u094d\u092f\u093e \u0915\u093f\u0924\u0928\u093e \u0939\u094b\u0924\u093e \u0939\u0948<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u091a\u093e\u0930<\/span>
\n(B)\u00a0\u0924\u0940\u0928<\/span>
\n(C)\u00a0<\/span>\u091b\u0903<\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0\u092a\u093e\u0901\u091a<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/p>\n

63.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u0906\u092f\u0928\u093f\u0915 \u092f\u094c\u0917\u093f\u0915\u094b\u0902 \u092e\u0947\u0902 \u0938\u0947 \u0915\u093f\u0938\u0915\u0947 \u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932 \u092e\u0947\u0902 \u0927\u0928\u093e\u092f\u0928\u094b\u0902 \u0914\u0930 \u090b\u0923\u093e\u092f\u0928\u094b\u0902 \u0915\u0947<\/span>\u00a0\u2013\u00a0\u0915\u0947\u0928\u094d\u0926\u094d\u0930\u094b\u0902 \u0915\u0947 \u092c\u0940\u091a \u0915\u0940 \u0926\u0942\u0930\u0940 \u0905\u0927\u093f\u0915\u0924\u092e \u0939\u094b\u0924\u0940 \u0939\u0948<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A) LiF
\n(B) CsF
\n(C) CsI<\/span>\u2713<\/span><\/b>
\n(D) Lil<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

64.\u00a0\u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932 \u092e\u0947\u0902 \u0936\u0949\u091f\u0915\u0940 \u0926\u094b\u0937 \u0939\u094b\u0924\u093e \u0939\u0948 \u091c\u092c :<\/span><\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932 \u091c\u093e\u0932\u0915 \u0938\u0947 \u0905\u0938\u092e\u093e\u0928 \u0938\u0902\u0916\u094d\u092f\u093e \u092e\u0947\u0902 \u090b\u0923\u093e\u092f\u0928 \u0932\u0941\u092a\u094d\u0924 \u0939\u094b \u091c\u093e\u0924\u0947 \u0939\u0948\u0902<\/span>
\n(B)\u00a0<\/span>\u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932 \u091c\u093e\u0932\u0915 \u0938\u0947 \u0938\u092e\u093e\u0928 \u0938\u0902\u0916\u094d\u092f\u093e \u092e\u0947\u0902 \u0927\u0928\u093e\u092f\u0928 \u0924\u0925\u093e \u090b\u0923\u093e\u092f\u0928 \u0932\u0941\u092a\u094d\u0924 \u0939\u094b \u091c\u093e\u0924\u0947 \u0939\u0948\u0902<\/span>\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u0915\u094b\u0908 \u0906\u092f\u0928 \u0905\u092a\u0928\u093e \u0938\u093e\u092e\u093e\u0928\u094d\u092f \u0938\u094d\u0925\u093e\u0928 \u091b\u094b\u0921\u093c\u0915\u0930 \u0905\u0928\u094d\u0924\u0930\u093e\u0915\u093e\u0936\u0940 \u0938\u094d\u0925\u093e\u0928 \u092a\u094d\u0930\u093e\u092a\u094d\u0924 \u0915\u0930 \u0932\u0947\u0924\u093e \u0939\u0948<\/span>
\n(D)\u00a0\u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932 \u0915\u093e \u0918\u0928\u0924\u094d\u0935 \u092c\u0922\u093c \u091c\u093e\u0924\u093e \u0939\u0948<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/p>\n

65. A\u00a0\u0914\u0930<\/span>\u00a0B\u00a0\u0924\u0924\u094d\u0935\u094b\u0902 \u0926\u094d\u0935\u093e\u0930\u093e \u0928\u093f\u0930\u094d\u092e\u093f\u0924 \u090f\u0915 \u092f\u094c\u0917\u093f\u0915 \u0918\u0928\u0940\u092f \u0938\u0902\u0930\u091a\u0928\u093e \u092e\u0947\u0902 \u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932\u0940\u0915\u0943\u0924 \u0939\u094b\u0924\u093e \u0939\u0948 \u091c\u093f\u0938\u092e\u0947\u0902<\/span>\u00a0A\u00a0\u0915\u0947 \u092a\u0930\u092e\u093e\u0923\u0941 \u0918\u0928 \u0915\u0947 \u0915\u0947\u0928\u094d\u0926\u094d\u0930 \u092a\u0930 \u0914\u0930<\/span>\u00a0B\u00a0\u0915\u0947 \u092a\u0930\u092e\u093e\u0923\u0941 \u092b\u0932\u0915 \u0915\u0947\u0928\u094d\u0926\u094d\u0930\u094b\u0902 \u092a\u0930 \u0939\u094b\u0924\u0947 \u0939\u0948\u0902\u0964 \u092f\u094c\u0917\u093f\u0915 \u0915\u093e \u0938\u0942\u0924\u094d\u0930 \u0939\u0948 :<\/span><\/span><\/b><\/span><\/p>\n

(A) AB3<\/sub>\u00a0\u2713<\/span><\/b>
\n(B) AB
\n(C) A3<\/sub>B
\n(D) A2<\/sub>B2<\/sub><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

66.\u00a0\u091c\u092c \u0917\u0932\u093f\u0924 \u091c\u093f\u0902\u0915 \u0915\u094b \u0920\u094b\u0938 \u0905\u0935\u0938\u094d\u0925\u093e \u0924\u0915 \u0920\u0923\u094d\u0921\u093e \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948<\/span>,\u00a0\u092f\u0939<\/span>\u00a0hep\u00a0\u0938\u0902\u0930\u091a\u0928\u093e \u092a\u094d\u0930\u093e\u092a\u094d\u0924<\/span>
\n\u0915\u0930\u0924\u093e \u0939\u0948\u0964 \u091c\u093f\u0902\u0915 \u092a\u0930\u092e\u093e\u0923\u0941 \u0915\u0947 \u0928\u093f\u0915\u091f\u0924\u092e \u092a\u0921\u093c\u094b\u0938\u093f\u092f\u094b\u0902 \u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e \u0939\u094b\u0917\u0940 :<\/span><\/span><\/b><\/span><\/p>\n

(A) 4
\n(B) 6
\n(C) 8
\n(D) 12<\/span>\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

67.\u00a0\u092a\u094b\u091f\u0948\u0936\u093f\u092f\u092e<\/span>\u00a0bce\u00a0\u091c\u093e\u0932\u0915 \u092e\u0947\u0902 \u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932\u0940\u0915\u0943\u0924 \u0939\u094b\u0924\u093e \u0939\u0948\u0964 \u0905\u0924\u0903 \u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932 \u0938\u0902\u0930\u091a\u0928\u093e \u092e\u0947\u0902 \u0924\u0924\u094d\u0935 \u0915\u0940 \u0909\u092a\u0938\u0939\u0938\u0902\u092f\u094b\u091c\u0928 \u0938\u0902\u0916\u094d\u092f\u093e \u0939\u0948 :<\/span><\/span><\/b><\/span><\/p>\n

(A) 0
\n(B) 4
\n(C) 6
\n(D) 8<\/span>\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

68.\u00a0\u0915\u093f\u0938\u092e\u0947\u0902<\/span>\u00a0hep\u00a0\u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932 \u0938\u0902\u0930\u091a\u0928\u093e \u0939\u094b\u0924\u0940 \u0939\u0948<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A) NaCl
\n(B) CsCl
\n(C) Zn<\/span>\u2713<\/span><\/b>
\n(D) RbCl<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

69.\u00a0\u0915\u093f\u0938\u0940 \u0920\u094b\u0938 \u091c\u093e\u0932\u0915 \u092e\u0947\u0902 \u0927\u0928\u093e\u092f\u0928 \u091c\u093e\u0932\u0915 \u0938\u094d\u0925\u0932 \u091b\u094b\u0921\u093c \u0915\u0930 \u090f\u0915 \u0905\u0928\u094d\u0924\u0930\u093e\u0915\u093e\u0936\u0940 \u0938\u094d\u0925\u093f\u0924\u093f \u092e\u0947\u0902 \u0938\u094d\u0925\u093f\u0924 \u0939\u0948\u0964 \u092f\u0939 \u091c\u093e\u0932\u0915 \u0926\u094b\u0937 \u0939\u0948 :<\/span><\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0905\u0928\u094d\u0924\u0930\u093e\u0915\u093e\u0936\u0940 \u0926\u094b\u0937<\/span>
\n(B)\u00a0\u0930\u093f\u0915\u094d\u0924\u093f \u0926\u094b\u0937<\/span>
\n(C)\u00a0<\/span>\u092b\u094d\u0930\u0947\u0902\u0915\u0947\u0932 \u0926\u094b\u0937<\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0\u0936\u0949\u091f\u094d\u0915\u0940 \u0926\u094b\u0937<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

70.\u00a0\u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932 \u092e\u0947\u0902 \u0938\u0902\u092d\u093e\u0935\u093f\u0924 \u0906\u0915\u093e\u0936\u0940\u092f \u091c\u093e\u0932\u0915 \u0915\u0947 \u0915\u093f\u0924\u0928\u0947 \u092a\u094d\u0930\u0915\u093e\u0930 \u0939\u0948\u0902<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A) 23
\n(B) 7
\n(C) 230
\n(D) 14<\/span>\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

71.\u00a0\u092b\u094d\u0930\u0947\u0902\u0915\u0947\u0932 \u0926\u094b\u0937 \u0915\u093f\u0938\u092e\u0947\u0902 \u0939\u094b\u0924\u093e \u0939\u0948<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0938\u094b\u0921\u093f\u092f\u092e \u0915\u094d\u0932\u094b\u0930\u093e\u0907\u0921 \u092e\u0947\u0902<\/span>
\n(B)\u00a0\u0917\u094d\u0930\u0947\u092b\u093e\u0907\u091f \u092e\u0947\u0902<\/span>
\n(C)\u00a0<\/span>\u0938\u093f\u0932\u094d\u0935\u0930 \u092c\u094d\u0930\u094b\u092e\u093e\u0907\u0921 \u092e\u0947\u0902<\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0\u0939\u0940\u0930\u093e \u092e\u0947\u0902<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

72.\u00a0\u0930\u0949\u0915 \u0938\u093e\u0932\u094d\u091f \u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u0940 \u0938\u0902\u0930\u091a\u0928\u093e \u092e\u0947\u0902 \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 \u0906\u092f\u0928 \u0915\u0940 \u0938\u092e\u0928\u094d\u0935\u092f\u0928 \u0938\u0902\u0916\u094d\u092f\u093e \u0915\u094d\u092f\u093e \u0939\u094b\u0924\u0940 \u0939\u0948<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A) 1
\n(B) 3
\n(C) 5
\n(D) 6<\/span>\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

73.\u00a0\u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932 \u090f\u0915\u0915 \u0938\u0947\u0932 \u0915\u0940 \u0915\u094c\u0928-\u0938\u0940 \u092c\u093f\u0928\u094d\u0926\u0941\u0915 \u0924\u094d\u0930\u0941\u091f\u093f \u0938\u0902\u092c\u0928\u094d\u0926\u094d\u0927 \u0920\u094b\u0938 \u0915\u0947 \u0918\u0928\u0924\u094d\u0935 \u0915\u094b \u092c\u0926\u0932 \u0926\u0947\u0924\u0940<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0936\u0949\u091f\u0915\u0940 \u0924\u094d\u0930\u0941\u091f\u093f<\/span>\u00a0\u2713<\/span><\/b>
\n(B)\u00a0\u092b\u094d\u0930\u0947\u0902\u0915\u0947\u0932 \u0924\u094d\u0930\u0941\u091f\u093f<\/span>
\n(C)\u00a0\u0927\u093e\u0924\u0941 \u0906\u0927\u093f\u0915\u094d\u092f \u0924\u094d\u0930\u0941\u091f\u093f<\/span>
\n(D)\u00a0\u0927\u093e\u0924\u0941 \u0928\u093f\u092e\u094d\u0928\u0924\u092e \u0924\u094d\u0930\u0941\u091f\u093f<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

74. (Na2<\/sub>0)\u00a0\u092e\u0947\u0902 \u0938\u094b\u0921\u093f\u092f\u092e \u0915\u0940 \u0915\u094b\u0906\u0930\u094d\u0921\u093f\u0928\u0947\u0936\u0928 \u0938\u0902\u0916\u094d\u092f\u093e \u0915\u093f\u0924\u0928\u0940 \u0939\u0948<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A) 6
\n(B) 4<\/span>\u2713<\/span><\/b>
\n(C) 8
\n(D) 2<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

75.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0915\u094c\u0928 \u0905\u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932\u0940\u092f \u0920\u094b\u0938 \u092a\u0926\u093e\u0930\u094d\u0925 \u0939\u0948<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0939\u0940\u0930\u093e<\/span>
\n(B)\u00a0\u0917\u094d\u0930\u0947\u092b\u093e\u0907\u091f<\/span>
\n(C)\u00a0<\/span>\u0915\u093e\u0901\u091a<\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0\u0938\u093e\u0927\u093e\u0930\u0923 \u0928\u092e\u0915<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

76. Mgo\u00a0\u0915\u0940 \u0938\u0902\u0930\u091a\u0928\u093e<\/span>\u00a0NaCI\u0915\u0940 \u0924\u0930\u0939 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964\u00a0<\/span>Mg\u0915\u093e \u0915\u094b\u0911\u0930\u094d\u0921\u093f\u0928\u0947\u0938\u0928 \u0938\u0902\u0916\u094d\u092f\u093e (<\/span>Coordination number)\u00a0\u0939\u0948\u0964<\/span><\/span><\/b><\/span><\/p>\n

(A) 2
\n(B) 6<\/span>\u2713<\/span><\/b>
\n(C) 4
\n(D) 8<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

77.\u00a0\u091c\u094b \u0927\u093e\u0924\u0941 \u0939\u0947\u0915\u094d\u0938\u093e\u0917\u094b\u0928\u0932 \u0915\u094d\u0932\u094b\u091c \u092a\u0948\u0915\u094d\u0921 \u0938\u0902\u0930\u091a\u0928\u093e \u0915\u093e \u0930\u0935\u093e \u092c\u0928\u093e\u0924\u093e \u0939\u0948<\/span>,\u00a0\u0909\u0938\u0915\u0940 \u0938\u0939\u0938\u0902\u092f\u094b\u091c\u0928 \u0938\u0902\u0916\u094d\u092f\u093e (\u0915\u094b\u0911\u0930\u094d\u0921\u093f\u0928\u0947\u0936\u0928 \u0938\u0902\u0916\u094d\u092f\u093e) \u0939\u094b\u0917\u0940-<\/span><\/span><\/b><\/span><\/p>\n

(A) 12\u00a0\u2713<\/span><\/b>
\n(B) 8
\n(C) 4
\n(D) 6<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

78.\u00a0bcc<\/i>\u00a0\u091c\u093e\u0932\u0915 (<\/span>lattice)\u00a0\u090f\u0915\u0915 \u0915\u094b\u0937\u094d\u0920\u093f\u0915\u093e (<\/span>unit cel)\u00a0\u092e\u0947\u0902 \u0930\u093f\u0915\u094d\u0924 \u0938\u094d\u0925\u093e\u0928 \u0939\u0948\u0964<\/span><\/span><\/b><\/span><\/p>\n

(A) 26%
\n(B) 48%
\n(C) 23%
\n(D) 32%<\/span>\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

79.\u00a0\u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932\u0940\u092f \u0926\u094b\u0937 \u0915\u0947 \u0932\u093f\u090f \u0928\u093f\u092e\u094d\u0928 \u0915\u0925\u0928 \u0938\u0939\u0940 \u0939\u0948\u0964<\/span><\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0936\u0949\u091f\u094d\u0915\u0940 \u0926\u094b\u0937 \u0938\u0947 \u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932\u0940\u092f \u0920\u094b\u0938 \u0915\u0947 \u0918\u0928\u0924\u094d\u0935 \u092a\u0930 \u0915\u094b\u0908 \u092a\u094d\u0930\u092d\u093e\u0935 \u0928\u0939\u0940\u0902 \u0939\u094b\u0924\u093e \u0939\u0948<\/span>
\n(B)\u00a0\u092b\u094d\u0930\u0947\u0902\u0915\u0947\u0932 \u0926\u094b\u0937 \u0938\u0947 \u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932\u0940\u092f \u0920\u094b\u0938 \u0915\u093e \u0918\u0928\u0924\u094d\u0935 \u0918\u091f\u0924\u093e \u0939\u0948<\/span>
\n(C)\u00a0<\/span>\u092b\u094d\u0930\u0947\u0902\u0915\u0947\u0932 \u0926\u094b\u0937 \u090f\u0915 \u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u093e<\/span>\u00a0dislocation defect\u00a0\u0939\u0948<\/span>\u00a0\u2713<\/span><\/b>
\n(D)\u00a0\u092b\u094d\u0930\u0947\u0902\u0915\u0947\u0932 \u0926\u094b\u0937 \u0915\u094d\u0937\u093e\u0930\u0940\u092f \u0927\u093e\u0924\u0941 \u0915\u0947 \u0939\u0948\u0932\u093e\u0907\u0921 \u092e\u0947\u0902 \u092a\u093e\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

80.\u00a0\u0939\u0940\u0930\u093e \u0915\u0947 \u090f\u0915 \u092f\u0942\u0928\u093f\u091f \u0938\u0947\u0932 \u092e\u0947\u0902 \u0915\u093e\u0930\u094d\u092c\u0928 \u092a\u0930\u092e\u093e\u0923\u0941\u0913\u0902 \u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e \u0939\u0948-<\/span><\/span><\/b><\/span><\/p>\n

(A) 6
\n(B) 1
\n(C) 4
\n(D) 8<\/span>\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

81.\u00a0\u0915\u093f\u0938\u0940 \u0918\u0928\u0940\u092f \u0915\u094d\u0932\u094b\u091c \u092a\u0948\u0915\u093f\u0902\u0917 \u0938\u0902\u0930\u091a\u0928\u093e (<\/span>cubicclosepacked structure)\u00a0\u0915\u0947 \u092a\u094d\u0930\u0924\u093f \u092a\u0930\u092e\u093e\u0923 \u092e\u0947\u0902 \u0905\u0937\u094d\u091f\u092b\u0932\u0915\u0940\u092f \u0930\u093f\u0915\u094d\u0924\u093f (<\/span>octahedral voids)\u00a0\u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e \u0939\u0948 :<\/span><\/span><\/b><\/span><\/p>\n

(A) 1\u00a0\u2713<\/span><\/b>
\n(B) 3
\n(C) 2
\n(D) 4<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

82.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0915\u093f\u0938 \u0924\u0924\u094d\u0924\u094d\u0935 \u0938\u0947 \u0938\u093f\u0932\u093f\u0915\u0949\u0928 (<\/span>Si)\u00a0\u0915\u094b \u092e\u093f\u0936\u094d\u0930\u093f\u0924 \u0915\u0930\u0928\u0947 (<\/span>doping)\u00a0\u0938\u0947<\/span>\u00a0p-\u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u093e \u0905\u0930\u094d\u0926\u094d\u0927\u091a\u093e\u0932\u0915 (<\/span>semiconductor)\u00a0\u092a\u094d\u0930\u093e\u092a\u094d\u0924 \u0939\u094b\u0924\u093e \u0939\u0948\u0964<\/span><\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0938\u0947\u0932\u0947\u0928\u093f\u092f\u092e (<\/span>Se)
\n(B)\u00a0<\/span>\u092c\u094b\u0930\u093e\u0928(<\/span>B)\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u091c\u0930\u092e\u0947\u0928\u093f\u092f\u092e (<\/span>Ge)
\n(D)\u00a0\u0906\u0930\u0938\u0947\u0928\u093f\u0915 (<\/span>As)<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

83.\u00a0\u0920\u094b\u0938 \u0915\u094d\u0937\u093e\u0930\u0940\u092f \u0927\u093e\u0924\u0941 \u0915\u0947 \u0939\u0948\u0932\u093e\u0907\u0921 \u0915\u093e \u0930\u0902\u0917\u0940\u0928 \u0926\u093f\u0916\u0928\u0947 \u0915\u093e \u0915\u093e\u0930\u0923 \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0936\u0949\u091f\u094d\u0915\u0940 \u0926\u094b\u0937<\/span>
\n(B)\u00a0\u092b\u094d\u0930\u0947\u0902\u0915\u0947\u0932 \u0926\u094b\u0937<\/span>
\n(C) F-<\/span>\u0915\u0947\u0928\u094d\u0926\u094d\u0930 (<\/span>F-centres)\u00a0\u2713<\/span><\/b>
\n(D)\u00a0\u0905\u0928\u094d\u0924\u0930\u093e\u0915\u093e\u0936\u0940 \u0938\u094d\u0925\u0932<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/p>\n

84.\u00a0\u092b\u0932\u0915 \u0915\u0947\u0928\u094d\u0926\u094d\u0930\u093f\u0924 \u092f\u0942\u0928\u093f\u091f \u0938\u0947\u0932 \u0915\u093e \u090f\u0915 \u092f\u0942\u0928\u093f\u091f<\/span>,\u00a0\u0926\u0942\u0938\u0930\u0947 \u092f\u0942\u0928\u093f\u091f \u0938\u0947\u0932 \u0915\u0947 \u0915\u093f\u0924\u0928\u0947 \u0938\u0902\u0916\u094d\u092f\u093e \u0938\u0947 \u092c\u0930\u093e\u092c\u0930-\u092c\u0930\u093e\u092c\u0930 \u0938\u093e\u091d\u093e \u0915\u0930\u0924\u0947 \u0939\u0948\u0902<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A) 2
\n(B) 4
\n(C) 6<\/span>\u2713<\/span><\/b>
\n(D) 8<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

85.\u00a0\u092b\u0932\u0915 \u0915\u0947\u0928\u094d\u0926\u094d\u0930\u093f\u0924 \u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932\u0940\u092f \u0920\u094b\u0938 \u0915\u0947 \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 \u092f\u0942\u0928\u093f\u091f \u0938\u0947\u0932 \u092e\u0947\u0902 \u092a\u0930\u092e\u093e\u0923\u0941\u0913\u0902 \u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e \u0939\u094b\u0924\u0940<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) 6
\n(B) 8
\n(C) 4<\/span>\u00a0\u2713<\/span><\/b>
\n(D) 5<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

86.\u00a0\u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932\u0940\u092f \u0920\u094b\u0938 \u092e\u0947\u0902 \u0936\u0949\u091f\u094d\u0915\u0940 \u0926\u094b\u0937 (<\/span>Schottky defect)\u00a0\u092a\u093e\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948 \u091c\u092c<\/span><\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932\u0940\u092f \u0920\u094b\u0938 \u0915\u093e \u0918\u0928\u0924\u094d\u0935 \u092c\u0922\u093c\u0924\u093e \u0939\u0948<\/span>
\n(B)\u00a0\u0927\u0928\u093e\u092f\u0928 \u0924\u0925\u093e \u090b\u0923\u093e\u092f\u0928 \u0915\u0947 \u0905\u0938\u092e\u093e\u0928 \u0938\u0902\u0916\u094d\u092f\u093e \u0905\u092a\u0928\u0947 \u0938\u094d\u0925\u093e\u0928 \u0938\u0947 \u0939\u091f\u0947 \u0930\u0939\u0924\u0947 \u0939\u0948\u0902<\/span>
\n(C)\u00a0\u0906\u092f\u0928 \u0905\u092a\u0928\u093e \u0938\u093e\u092e\u093e\u0928\u094d\u092f \u0938\u094d\u0925\u093e\u0928 \u091b\u094b\u0921\u093c \u0915\u0930 \u0905\u0928\u094d\u0924\u0930\u093e\u0915\u093e\u0936\u0940 \u0938\u094d\u0925\u0932 (<\/span>Interstitial site)\u00a0\u092e\u0947\u0902 \u091a\u0932\u093e \u091c\u093e\u0924\u093e \u0939\u0948<\/span>\u00a0\u2013
\n(D)\u00a0<\/span>\u0927\u0928\u093e\u092f\u0928 \u0924\u0925\u093e \u090b\u0923\u093e\u092f\u0928 \u0915\u0947 \u0938\u092e\u093e\u0928 \u0938\u0902\u0916\u094d\u092f\u093e \u0905\u092a\u0928\u0947 \u0938\u094d\u0925\u093e\u0928 \u0938\u0947 \u0939\u091f \u091c\u093e\u0924\u0947 \u0939\u0948\u0902<\/span>\u00a0\u2013\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

87. Mgo\u00a0\u0915\u0940 \u0938\u0902\u0930\u091a\u0928\u093e<\/span>\u00a0NaCI\u0915\u0940 \u0924\u0930\u0939 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964<\/span>Mg\u00a0\u0915\u093e \u0915\u094b\u0911\u0930\u094d\u0921\u093f\u0928\u0947\u0938\u0928 \u0938\u0902\u0916\u094d\u092f\u093e (<\/span>Coordination number)\u00a0\u0939\u0948\u0964<\/span><\/span><\/b><\/span><\/p>\n

(A) 2
\n(B) 6<\/span>\u00a0\u2713<\/span><\/b>
\n(C) 4
\n(D) 8<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

88.\u00a0\u0938\u0930\u094d\u0935\u093e\u0927\u093f\u0915 \u0915\u094d\u0932\u094b\u091c \u092a\u0948\u0915\u093f\u0902\u0917 \u0915\u093f\u0938 \u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932\u0940\u092f \u091c\u093e\u0932\u0915 \u0930\u091a\u0928\u093e \u092e\u0947\u0902 \u0939\u094b\u0924\u0940 \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u0938\u0930\u0932 \u0918\u0928\u0940\u092f (<\/span>simple cubic)
\n(B)\u00a0<\/span>\u092b\u0932\u0915 \u0915\u0947\u0928\u094d\u0926\u094d\u0930\u093f\u0924 (<\/span>face centred)\u00a0\u2713<\/span><\/b>
\n(C)\u00a0\u0905\u0928\u094d\u0924\u0903 \u0915\u0947\u0928\u094d\u0926\u094d\u0930\u093f\u0924 (<\/span>Body centred)
\n(D)\u00a0\u0909\u092a\u0930\u094b\u0915\u094d\u0924 \u0938\u092d\u0940<\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

89.\u00a0\u092b\u0947\u0930\u094b\u092e\u0948\u0917\u0928\u0947\u091f\u093f\u0915 (<\/span>Ferromagnetic)\u00a0\u0939\u0948\u0964<\/span><\/span><\/b><\/span><\/p>\n

(A) Ni
\n(B) Co
\n(C) Cro3<\/sub>
\n(D)\u00a0<\/span>\u0938\u092d\u0940<\/span>\u00a0\u2713<\/span><\/b><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

90\u00a0\u0909\u0938 \u0906\u092f\u0928\u093f\u0915 \u092f\u094c\u0917\u093f\u0915 \u0915\u0940 \u091a\u0924\u0941\u0937\u094d\u092b\u0932\u0915\u0940\u092f \u0906\u0915\u0943\u0924\u093f \u0939\u094b\u0924\u0940 \u0939\u0948 \u091c\u093f\u0938\u092e\u0947\u0902<\/span>\u00a0r+<\/sup>\/r\u00a0\u2013\u00a0<\/sup>\u0915\u093e \u092e\u093e\u0928 \u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0915\u093f\u0938\u0915\u0947 \u092c\u0930\u093e\u092c\u0930 \u0939\u094b\u0924\u093e \u0939\u0948<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A) 0.414\u00a0\u0938\u0947<\/span>\u00a00.732
\n(B) 0.732\u00a0\u0938\u0947<\/span>\u00a01.00
\n(C) 0.155\u00a0\u0938\u0947<\/span>\u00a00.225
\n(D) 0.225\u00a0<\/span>\u00a0\u0938\u0947<\/span>\u00a00.414\u00a0\u2713<\/span><\/b><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

91.\u00a0\u0915\u093f\u0938 \u092f\u0942\u0928\u093f\u091f \u0938\u0947\u0932 \u0915\u0947 \u0932\u093f\u090f<\/span>\u00a0<\/span><\/b>\u221d<\/span><\/b>\u00a0=\u00a0<\/span><\/b>\u03b2<\/span><\/b>\u00a0= 90\u00b0,\u00a0a=b<\/i><\/span><\/b>\u2260<\/span><\/i><\/b>c<\/span><\/i><\/b><\/span><\/p>\n

(A)\u00a0\u0915\u094d\u092f\u0942\u092c\u093f\u0915 (<\/span>cubic)
\n(B)\u00a0\u091f\u094d\u0930\u093e\u0907\u0915\u094d\u0932\u0940\u0928\u093f\u0915<\/span>
\n(C)\u00a0\u0939\u0947\u0915\u094d\u0938\u093e\u0917\u094b\u0928\u0932<\/span>
\n(D)\u00a0<\/span>\u091f\u0947\u091f\u094d\u0930\u093e\u0917\u094b\u0928\u0932<\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

92.\u00a0\u091f\u094d\u0930\u093e\u0907\u0915\u094d\u0932\u0940\u0928\u093f\u0915 (<\/span>Triclinic)\u00a0\u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932 \u0915\u093e \u0905\u0915\u094d\u0937\u0940\u092f \u0915\u094b\u0923 \u0939\u094b\u0924\u093e \u0939\u0948 :<\/span><\/span><\/b><\/span><\/p>\n

(A)\u00a0<\/span>\u221d<\/span>\u00a0=\u00a0<\/span>\u03b2<\/span>\u00a0= y 90\u00b0
\n(B)\u00a0<\/span>\u221d<\/span>\u00a0= y = 90\u00b0,\u00a0<\/span>\u03b2\u2260<\/span>\u00a090\u00b0
\n(C)\u00a0<\/span>\u221d\u00a0\u2260\u00a0\u03b2\u00a0\u2260\u00a0y\u00a0\u2260\u00a090\u00b0\u00a0\u2713<\/span><\/b>
\n(D)\u00a0<\/span>\u221d<\/span>\u00a0=\u00a0<\/span>\u03b2<\/span>\u00a0= y\u00a0<\/span>\u2260<\/span>\u00a090\u00b0<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

93.\u00a0\u0918\u0928\u093e\u0915\u093e\u0930 \u0915\u094d\u0930\u093f\u0938\u094d\u091f\u0932 \u092e\u0947\u0902 \u092c\u094d\u0930\u0947\u092c\u0947\u0938 \u091c\u093e\u0932\u0915\u094b\u0902 \u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e \u0939\u094b\u0924\u0940 \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) 3\u00a0\u2713<\/span><\/b>
\n(B) 1
\n(C) 4
\n(D) 14<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

94.\u00a0\u091f\u0947\u091f\u094d\u0930\u093e\u0939\u0947\u0921\u094d\u0930\u0949\u0932 (<\/span>Tetrahedral)\u00a0\u0906\u0915\u0943\u0924\u093f \u0915\u0947 \u0932\u093f\u090f \u0924\u094d\u0930\u093f\u091c\u094d\u092f\u093e \u0905\u0928\u0941\u092a\u093e\u0924 \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) 0\u00a0\u0938\u0947<\/span>\u00a00.155
\n(B) 0.225\u00a0<\/span>\u0938\u0947<\/span>\u00a00.414\u00a0\u2713<\/span><\/b>
\n(C) 0.155\u00a0\u0938\u0947<\/span>\u00a00.225
\n(D) 0.414\u00a0\u0938\u0947<\/span>\u00a00.732<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

95. ccp\u00a0\u0938\u0902\u0930\u091a\u0928\u093e \u0924\u0925\u093e<\/span>\u00a0bcc\u00a0\u0938\u0902\u0930\u091a\u0928\u093e \u092e\u0947\u0902 \u092e\u0941\u0915\u094d\u0924 \u092f\u093e \u0905\u0928\u093e\u0927\u094d\u092f\u093e\u0938\u093f\u0924 \u0926\u093f\u0915\u0938\u094d\u0925\u093e\u0928 (<\/span>free space)\u00a0\u0915\u0947 \u092a\u094d\u0930\u0924\u093f\u0936\u0924 \u0915\u094d\u0930\u092e\u0936\u0903 \u0939\u0948\u0902\u0964<\/span><\/span><\/b><\/span><\/p>\n

(A) 30%\u00a0\u0924\u0925\u093e<\/span>\u00a026%
\n(B) 26%\u00a0<\/span>\u0924\u0925\u093e<\/span>\u00a032%\u00a0\u2713<\/span><\/b>
\n(C) 32%\u00a0\u0924\u0925\u093e<\/span>\u00a048%
\n(D) 48%\u00a0\u0924\u0925\u093e<\/span>\u00a026%<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

96.\u00a0\u092f\u0926\u093f<\/span>\u00a0K+\u00a0\u0924\u0925\u093e<\/span>\u00a0F-\u00a0\u0915\u0940 \u0924\u094d\u0930\u093f\u091c\u094d\u092f\u093e \u0915\u094d\u0930\u092e\u0936\u0903<\/span>\u00a0133 Pm\u00a0\u0924\u0925\u093e<\/span>\u00a0136 Pm\u00a0\u0939\u094b \u0924\u094b<\/span>\u00a0KF\u00a0\u092e\u0947\u0902<\/span>\u00a0K+\u0924\u0925\u093e<\/span>\u00a0F\u00a0\u0915\u0947 \u092c\u0940\u091a \u0915\u0940 \u0926\u0942\u0930\u0940 \u0939\u094b\u0917\u0940<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) 269 Pm
\n(B) 134.5 Pm<\/span>\u00a0\u2713<\/span><\/b>
\n(C) 136 Pm
\n(D) 3 Pm<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

97.\u00a0\u0915\u092e\u0930\u0947 \u0915\u0947 \u0924\u093e\u092a\u0915\u094d\u0930\u092e \u092a\u0930 \u0938\u094b\u0921\u093f\u092f\u092e \u0927\u093e\u0924\u0941 \u0915\u0940<\/span>\u00a0bcc<\/i>\u00a0\u0938\u0902\u0930\u091a\u0928\u093e \u092e\u0947\u0902 \u0915\u093f\u0928\u093e\u0930\u0947 \u0915\u0940 \u0932\u092e\u094d\u092c\u093e\u0908<\/span>\u00a0a=4.29 \u00c5\u00a0\u0939\u0948\u0964 \u0938\u094b\u0921\u093f\u092f\u092e \u092a\u0930\u092e\u093e\u0923\u0941 \u0915\u0940 \u0924\u094d\u0930\u093f\u091c\u094d\u092f\u093e \u0939\u0948\u0964<\/span><\/span><\/b><\/span><\/p>\n

(A) 1.40\u00c5
\n(B) 2.65 \u00c5
\n(C) 1.85 \u00c5<\/span>\u00a0\u2713<\/span><\/b>
\n(D) 2.15 \u00c5<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

98. CsCI\u00a0\u0915\u0947 \u0932\u093f\u090f<\/span>\u00a0r+<\/sup>\/r\u00a0\u2013\u00a0<\/sup>= 093\u00a0\u0939\u0948<\/span>\u00a0\u0924\u094b \u0907\u0938\u0915\u0940 \u0938\u092e\u094d\u092d\u093e\u0935\u093f\u0924 \u0938\u0902\u0930\u091a\u0928\u093e \u0939\u0948<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A)\u00a0\u091f\u0947\u091f\u094d\u0930\u093e\u0939\u0947\u0921\u094d\u0930\u093e\u0932<\/span>
\n(B)\u00a0\u0938\u094d\u0915\u094d\u0935\u093e\u092f\u0930 \u092a\u094d\u0932\u0947\u0928\u0930<\/span>
\n(C)\u00a0\u0906\u0915\u094d\u091f\u093e\u0939\u0947\u0921\u094d\u0930\u093e\u0932<\/span>
\n(D)\u00a0bcc<\/i><\/span>\u00a0\u2713<\/span><\/b><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

99.\u00a0\u0915\u093f\u0938\u0940 \u0906\u092f\u0928\u093f\u0915 \u0920\u094b\u0938 \u0915\u0940 \u0938\u092e\u094d\u092d\u093e\u0935\u093f\u0924 \u0938\u0902\u0930\u091a\u0928\u093e \u091f\u0947\u091f\u094d\u0930\u093e\u0939\u0947\u0921\u094d\u0930\u093e\u0932 \u0939\u094b\u0917\u0940 \u092f\u0926\u093f \u0907\u0938\u0915\u0947 \u0915\u093e \u092e\u093e\u0928 \u0939\u094b\u0917\u093e<\/span>\u00a0\u2013<\/span><\/b><\/span><\/p>\n

(A) 0.414\u00a0\u0938\u0947<\/span>\u00a00.732
\n(B) 0.225\u00a0<\/span>\u0938\u0947<\/span>\u00a00.414\u00a0\u2713<\/span><\/b>
\n(C) 0.155\u00a0\u0938\u0947<\/span>\u00a00.225
\n(D) 0.732\u00a0\u0938\u0947<\/span>\u00a01.0<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/b><\/p>\n

100.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0915\u094c\u0928 \u0911\u0915\u094d\u0938\u093e\u0907\u0921 \u0927\u093e\u0924\u0941 \u0915\u0940 \u0924\u0930\u0939 \u0935\u093f\u0926\u094d\u092f\u0941\u0924\u0940\u092f \u0917\u0941\u0923 \u0926\u0930\u094d\u0936\u093e\u0924\u093e \u0939\u0948<\/span>\u00a0?<\/span><\/b><\/span><\/p>\n

(A) Sio2<\/sub>
\n(B) MgO
\n(C) So2<\/sub>(s)<\/span>\u2713<\/span><\/b>
\n(D) CrO2<\/sub><\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

1.\u00a0\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0938\u0947 \u092c\u0947\u0930\u0935\u093e\u0926\u093e\u0930 \u0920\u094b\u0938 \u0915\u094c\u0928-\u0938\u093e \u0939\u0948\u00a0? (A)\u00a0\u0939\u0940\u0930\u093e\u00a0\u2713 (B)\u00a0\u0917\u094d\u0930\u0947\u092b\u093e\u0907\u091f (C)\u00a0\u0938\u093e\u092e\u093e\u0928\u094d\u092f \u0932\u0935\u0923 (D)\u00a0\u0917\u094d\u0932\u093e\u0938 2.\u00a0\u090a\u0937\u094d\u092e\u093e \u0914\u0930 \u0935\u093f\u0926\u094d\u092f\u0941\u0924 \u0915\u093e \u0905\u091a\u094d\u091b\u093e \u091a\u093e\u0932\u0915 \u0939\u0948\u00a0\u2013 (A)\u00a0\u090f\u0928\u094d\u0925\u094d\u0930\u093e\u0938\u093e\u0907\u091f<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[63],"tags":[],"class_list":["post-584","post","type-post","status-publish","format-standard","hentry","category-chemistry-objective"],"_links":{"self":[{"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=\/wp\/v2\/posts\/584","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=584"}],"version-history":[{"count":4,"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=\/wp\/v2\/posts\/584\/revisions"}],"predecessor-version":[{"id":1686,"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=\/wp\/v2\/posts\/584\/revisions\/1686"}],"wp:attachment":[{"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=584"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=584"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/class12.studyguruji.in\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=584"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}