Related Practice Questions :

Total volume of atoms present in a face centred cubic unit cell of a metal is ( r is atomic radius):

(A) 20/3 πr3

(B)  24/3 πr3

(C)  12/3 πr3

(D)  16/3 πr3

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Select the correct statement (s)-

(a) The C.N. of cation occupying a tetrahedral hole is 4.

(b) The C.N. of cation occupying a octahedral hole is 6.

(c) In schottky defects, density of the lattice decreases,

(A) a,b

(B) b,c

(C) a,b,c

(D) a,c

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Among the following types of voids. which one is the largest void:-

(A) Triangular system
(B) Tetragonal system
(C) Monoclinic system
(D) Octahedral

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The arrangement ABC ABC.. is referred to as.

(a) octahedral close packing

(b) hexagonal clase packing

(c) tetrahedral close packing

(d) cubic close packing

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The ratio of cations to anion in a closed pack tetrahedral is:

(a) 0.414
(b) 0.225
(c) 0.02
(d) none of these

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