June 2022
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Jun 1, 2022
a. 4 b. 6 c. 8 d. 10 Ans. c (5)
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Jun 1, 2022
Ans. a (18)
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Jun 1, 2022
a. 2 b. 4 c. 6 d. 8 Ans. b (10)
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Jun 1, 2022
CaF 2 is a. Face centred cubic b. Body centred cubic c. Simple cubic d. Hexagonal closed packing Ans. a Explanation...
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Jun 1, 2022
a. 2√2r, 4r/√3, 2r b. 4r√3, 2√2r, 2r c. 2r, 2√2r, 4r/√3 d. 2r, 4r√3, 2/√2r Ans. a (8)
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Jun 1, 2022
a. NH 3 b. C 2 H 4 c. C O 2 d. SO 2 Ans. a Explanation : In NH molecule the original appearance...
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Jun 1, 2022
a. Face centred cubic lattice b. Body – centred c. Simple cubic lattice d. Orthorhombic lattice Ans. b Explanation :...
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Jun 1, 2022
X – ions around A + ion in solid AX is given in the figure (not drawn to scale). If...
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Jun 1, 2022
a. 1624 nm b. 0.1246nm c. 0.2164nm d. 0.1426nm Ans. b (17)
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Jun 1, 2022
a. Lone pair of electrons b. Free valence electrons c. Cations d. Anions Ans. b Explanation : Graphite is...
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Jun 1, 2022
a. 1/2 (a) : √3/2(a) : √2/2 (a) b. 1 (a) : √3 (a) : √2(a) c. 1/2 (a) : √3/4(a)...
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Jun 1, 2022
a. 1 b. 2 c. 3 d. 4 Ans. d (10)
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Jun 1, 2022
Molecule/ion Magnetic property (i) C6 H 6 ...
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Jun 1, 2022
a. SO 2 (solid) b. I 2 c. Diamond d. H 2 O (ice) Ans. c (4)
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Jun 1, 2022
a. Quartz b. Tridymite c. Cristobalite d. Kieselguhr Ans. d Explanation : The amorphous form of silica is kieselguhr. (13)
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Jun 1, 2022
a. 8 b. 6 c. 4 d. 2 Ans. a (8)
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Jun 1, 2022
a. √3/4 (a) b. √3/2 (a) c. 2 √3 (a) d. 2/√3 (a) Ans. b (6)
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Jun 1, 2022
α = β = 90 º and γ = 120 º is a. Cubic b. Hexagonal c. Orthorhombic d. Rhombohedral...
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Jun 1, 2022
a. 4 b. 6 c. 8 d. 12 Ans. d (12)
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Jun 1, 2022
rc+ / r a- is a. 0. 732 – 1.000 b. 0.414 – 0.732 c. 0.225 – 0.414 d. 0.155 – 0....
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Jun 1, 2022
a. 0.732 r b. 0. 414 r c. 0. 225 r d. 0. 155 r Ans. b Explanation : For...
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Jun 1, 2022
a. The ionic crystal of AgBr has Schottky defect b. The unit cell having crystal parameters a = b ≠...
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Jun 1, 2022
a. Molecule b. Ion c. Electron d. Atom Ans. c Explanation : Each point in a lattice is known as...
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Jun 1, 2022
a. Hexagonal b. Orthorhombic c. Cubic d. Triclinic Ans. d Explanation : In a traiclinic crystal has no rotation of...
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Jun 1, 2022
K+ and F – ions if cell edge is a cm a. 2a cm b. a/2 cm c. 4a cm d....
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Jun 1, 2022
a. Sodium b. Magesium c. Zine d. Copper Ans. a Explanation : Sodium (Na) is a body centred cube. (7)
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Jun 1, 2022
a. 4 and 2 b. 9 and 14 c. 14 and 9 d. 2 and 4 Ans.d (8)
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Jun 1, 2022
a. 8 b. 4 c. 2 d. 6 Ans. d Explanation : a cube has 6 faces so it is...
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Jun 1, 2022
a ≠ b ≠ c, α ≠ ϒ = 90 º is a. Calcite b. Graphite c. Rhombic sulphur d....
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Jun 1, 2022
a. 7 b. 13 c. 32 d. 230 Ans. b Explanation : There are 14 Bravasi lattices (space lattices) (9)
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Jun 1, 2022
a. lonic b. Covalent c. Metallic d. Molecular Ans.c Explanation : Metallic crystals are good conductor of heat and current...
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Jun 1, 2022
a. Bigger ions form the close packed structure b. Smaller ions occupy either the tetrahedral or the octahedral voids depending...
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Jun 1, 2022
a. Conducting solid b. Network solid c. Covalent solid d. Ionic solid Ans. d (16)
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Jun 1, 2022
a. SiO2 B. MgO c. SO2 (s) d. CrO2 Ans. d Explanation : CrO2 , TiO and ReO are...
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Jun 1, 2022
a. TiO b. SiO2 c. TiO3 d. MgO Ans. c Explanation : Certain metal oxides like VO 2, VO, VO 3...
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Jun 1, 2022
Mg (s) 2. TiO (s) 3. I 2 4. H 2 O (s) a. only 1 b....
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Jun 1, 2022
a. London forces b. Dipole dipole interactions c. Covalent bonds d. Coulombic forces Ans. a (6)
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Jun 1, 2022
a. London forces b. Dipole- dipole interaction c. Covalent bonds d. Coulombic forces Ans.a Explanation : Iodine molecules are a...