Topic: Solid State, Test No.: 06, Total MCQs: 10
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Question 1 |
The number of carbon atoms per unit cell of diamond unit cell is
[NEET 2013]
8 | |
6 | |
4 | |
2 |
Question 2 |
The efficiency of
packing is 68% in
hcp structure | |
ccp structure | |
fcc structure | |
bcc structure |
Question 3 |
The ionic radii of Rb+ and I– are 1.46Å and
2.16Å respectively. The most probable type of structure exhibited by it is
NaCl type | |
ZnS type | |
CsCl type | |
CaF2 type |
Question 4 |
The number of
atoms per unit cell of bcc structure is
1 | |
2 | |
4 | |
6 |
Question 5 |
The number of hexagonal faces that are present in truncated octahedron is
14 | |
12 | |
10 | |
8 |
Question 6 |
The number of
tetrahedral voids in the unit cell of a face centred cubic lattice of similar
atoms is
4 | |
6 | |
8 | |
10 |
Question 7 |
The radius ratio in CsCl is 0.93. The expected lattice structure
is
octahedral | |
square planar | |
tetrahedral | |
body centred cubic |
Question 8 |
The unit cell of a
binary alloy composed of A and B metals, has a ccp structure with A atoms
occupying the corners and B atoms occupying the centres of each face of the
cube. If during the crystallization of this alloy, in the unit cell, two A
atoms are missing, the overall composition per unit cell is
AB6 | |
AB4 | |
AB8 | |
AB24 |
Question 9 |
The white ZnO
turns yellow on heating because of
Frenkel defect | |
Metal excess defect | |
Metal deficiency defect | |
Schottky defect |
Question 10 |
Three elements A,
B and C crystalise into a cubic solid lattice. Atoms A occupy the corners, B
occupies the cube centres and C occupies the edges. The formula of the compound
is
ABC | |
ABC2 | |
ABC3 | |
ABC4 |
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