CBSE Class 12 The Solid State Multiple Choice Questions with Answers. MCQ Questions Class 12 The Solid State with Answers Is Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 12 The Solid State MCQs with Answers to know their preparation level.
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MCQ Questions Class 12 The Solid State with Answers - Set - 2
Question 1:
The pyknometric density of sodium chloride crystal is 2.165 × 10³ kg m-3, while its X-ray density is 2.178 × 10³ kg m-3. The fraction of the unoccupied sites in sodium chloride crystal is
(a) 5.96
(b) 15.96 × 10-2
(c) 5.96 × 10-1
(d) 5.96 × 10-3
Correct Answer – (D)
Question 2 :
How many unit cells are present in a cube-shaped ideal crystal of NaCl of mass 1.00 g? (Atomic mass of Na = 213, Cl = 35.5)
(a) 5.14 × 1021
(b) 1.28 × 1021
(c) 1.71 × 1021
(d) 2.57 × 1021
Correct Answer – (D)
Question 3 :
The numbers of tetrahedral voids in the unit cell of a face centered cubic lattice of similar atoms is
(a) 4
(b) 6
(c) 8
(d) 10
Correct Answer – (C)
Question 4 :
The percentage of iron present as Fe (III) in Fe0.93 O1.0 is
(a) 17.7%
(b) 7.84%
(c) 11.5%
(d) 9.6%
Correct Answer – (B)
Question 5 :
Metallic lustre is explained by
(a) diffusion of metal ions
(b) oscillation of loose electrons
(c) excitation of free protons
(d) existence of bcc lattice.
Correct Answer – (B)
MCQ Questions Class 12 The Solid State with Answers
Question 6 :
What is the coordination number of Cl- in NaCl crystals
(a) 8
(b) 6
(c) 4
(d) 3
Correct Answer – (B)
Question 7 :
The hardest substance among the following is
(a) Be2C
(b) Graphite
(c) Titanium
(d) SiC
Correct Answer – (D)
Question 8 :
Which of the following fee structure contains cations in alternate tetrahedral voids?
(a) NaCl
(b) ZnS
(c) Na2O
(d) CaF2
Correct Answer – (B)
Question 9 :
In a face-centered cubic lattice, unit cell is shared equally by how many unit cells?
(a) 4
(b) 2
(c) 6
(d) 8
Correct Answer – (C)
Question 10 :
In face-centered cubic unit cell, edge length is
(a) (4/√3)r
(b) (4/√2)r
(c) 2r
(d) (√3/2)r
Correct Answer – (B)
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