Find here the NCERT Book Multiple Choice Questions from Class 12 Chemistry book with Answers Pdf free download as per CBSE new exam pattern. This may assist you to understand and check your knowledge about the chapters. Students also can take a free test of the Multiple Choice Questions of Class 12 Chemistry. Each question has four options followed by the right answer. These MCQ Questions are selected supported by the newest exam pattern as announced by CBSE.
Q.1 The coordination number of Y will be in the XY types of crystal:
(a) 6
(b) 8
(c) 12
(d) 4
(a) 6
Q.2 The fraction of the total volume occupied by the atoms present in a simple cube is
(a) π4
(b) π6
(c) π3√2
(d) π4√2
(b) π6
Q.3 Edge length of unit cell of chromium metal is 287 pm with bcc arrangement. The atomic radius is of the order
(a) 287 pm
(b) 574 pm
(c) 124.27 pm
(d) 143.5 pm
(c) 124.27 pm
Q.4 The edge length of fee cell is 508 pm. If radius of cation is 110 pm, the radius of anion is
(a) 110 pm
(b) 220 pm
(c) 285 pm
(d) 144 pm
(d) 144 pm
Q.5 The density of a metal which crystallises in bcc lattice with unit cell edge length 300 pm and molar mass 50 g mol-1 will be
(a) 10 g cm-3
(b) 14.2 g cm-3
(c) 6.15 g cm-3
(d) 9.3 2 g cm-3
(c) 6.15 g cm-3
Q.6 How many lithium atoms are present in a unit cell with edge length 3.5 Å and density 0.53 g cm-3? (Atomic mass of Li = 6.94):
(a) 2
(b) 1
(c) 4
(d) 6
(a) 2
Q.7 The distance between Na– and CL– ions in NaCl with a density 2.165 g cm-3
(a) 564 pm
(b) 282 pm
(c) 234 pm
(d) 538 pm
(b) 282 pm
Q.8 An element with atomic mass 100 has a bcc structure and edge length 400 pm. The density of element is
(a) 10.37 g cm-3
(b) 5.19 g cm-3
(c) 7.29 g cm-3
(d) 2.14 g cm-3
(b) 5.19 g cm-3
Q.9 Close packing is maximum in the crystal which is
(a) bcc
(b) fee
(c) simple cubic
(d) end centred cubic
(b) fee
Q.10 In a solid lattice, the cation has left a lattice site and is located at an interstitial position. The lattice defect is
(a) n-type
(b) p-type
(c) Frenkel defect
(d) Schottky defect
(c) Frenkel defect
Q.11 The coordination number of metal crystallizing in a hexagonal close packing structure are
(a) 12
(b) 4
(c) 8
(d) 10
(a) 12
Q.12 In a body centred unit cell, the number of atoms present is
(a) 1
(b) 2
(c) 3
(d) 4
(b) 2
Q.13 In a trigonal crystal
(a) a = b = c, α = ß = γ ≠ 90°
(b) a = b ≠ c, α = ß = γ = 90°
(c) a ≠ b ≠ c, α = ß = γ = 90°
(d) a = b ≠ c, α = ß = 90°, γ = 120°
(a) a = b = c, α = ß = γ ≠ 90°
Q.14 The appearance of colour in solid alkali metal halides is generally due to
(a) Schottky defect
(b) Frenkel defect
(c) F-centre
(d) Interstitial position
(c) F-centre
Q.15 In a body centred cubic structure, the space occupied is about
(a) 74%
(b) 20%
(c) 68%
(d) 52.4%
(c) 68%
Q.16 Polar crystals when heated produce small electrical current. The phenomenon is called
(a) Ferroelectricity
(b) Anti-ferroelectricity
(c) Pyroelectricity
(d) Piezoelectricity
(c) Pyroelectricity
Q.17 The empty space within hep arrangement is
(a) 34%
(b) 47.6%
(c) 32%
(d) 26%
(d) 26%
Q.18 A crystal system with axes a ≠ b ≠ c and angles α ≠ ß ≠ γ ≠ 90° corresponds to
(a) monoclinic
(b) triclinic
(c) cubic
(d) tetragonal
(b) triclinic
Q.19 The number of Cl– ions present around each Na+ ion in NaCl crystal lattice is
(a) 3
(b) 4
(c) 8
(d) 6
(d) 6
Q.20 To get n-type semiconductor from silicon, it should be doped with an element having valence electrons of
(a) 2
(b) 1
(c) 3
(d) 5
(d) 5
Q.21 Volume occupied by atoms in fee is
(a) 74%
(b) 68%
(c) 52.4%
(d) 75%
(a) 74%
Q.22 NaCl typecrystal (with coordination no. 6 : 6) can be converted into CsCl type crystal (with coordination no. 8 : 8) by applying
(a) high temperature
(b) high pressure
(c) high temperature and high pressure
(d) low temperature and low pressure
(b) high pressure
Chemistry MCQ Questions for Class 12 with Answers
- Chapter 1: The Solid State Class 12 MCQ Questions
- Chapter 2: Solutions Class 12 MCQ Questions
- Chapter 3: Electrochemistry Class 12 MCQ Questions
- Chapter 4: Chemical Kinetics Class 12 MCQ Questions
- Chapter 5: Surface Chemistry Class 12 MCQ Questions
- Chapter 6: General Principles and Processes of Isolation of Elements Class 12 MCQ Questions
- Chapter 7: The p-Block Elements Class 12 MCQ Questions
- Chapter 8: The d-and f-Block Elements Class 12 MCQ Questions
- Chapter 9: Coordination Compounds Class 12 MCQ Questions
- Chapter 10: Haloalkanes and Haloarenes Class 12 MCQ Questions
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