Class 12 Chemistry Chapter 1 The Solid State MCQs | Class 12 Chemistry Chapter 1 The Solid State Short Questions and Answers

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Questions
1 The number of octahedral void(s) per atom present in a cubic close-packed structure is
A 2
B 4
C 1
D 3

Answer:1
2 A metal crystallizes with a face-centered cubic lattice. The edge of the unit cell is 408 pm. The diameter of the metal atom is
A 144 pm
B 204 pm
C 288 pm
D 408 pm

Answer: 288 pm
3 AB crystallizes in a body centred cubic lattice with edge length 'a' equal to 387 pm. The distance between two oppositively charged ions in the lattice is
A 300 pm
B 335 pm
C 250 pm
D 200 pm

Answer: 335 pm
4 Percentage of free space in a body centred cubic unit cell is
A 32%
B 34%
C 28%
D 20%

Answer:32%
5 If NaCl is doped with 10–4 mol % of Sr Cl2, the concentration of cation vacancies will be (NA = 6.02 × 1023 mol–1)
A 6.02 × 1016 mol–1
B 6.02 × 1017 mol–1
C 6.02 × 1014 mol–1
D 6.02 × 1015 mol–1

Answer: 6.02 × 1017 mol–1
6 The appearance of colour in solid alkali metal halides is generally due to
A Schottky defect
B Frenkel defect
C Interstitial position
D F-centres

Answer: F-centres
7 In a face-centered cubic lattice, a unit cell is shared equally by how many unit cells?
A 2
B 4
C 6
D 8

Answer: 6

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