CBSE Class 12 Chemistry Solid State Worksheet Set A

Read and download free pdf of CBSE Class 12 Chemistry Solid State Worksheet Set A. Students and teachers of Class 12 Chemistry can get free printable Worksheets for Class 12 Chemistry Unit 1 The Solid State in PDF format prepared as per the latest syllabus and examination pattern in your schools. Class 12 students should practice questions and answers given here for Chemistry in Class 12 which will help them to improve your knowledge of all important chapters and its topics. Students should also download free pdf of Class 12 Chemistry Worksheets prepared by school teachers as per the latest NCERT, CBSE, KVS books and syllabus issued this academic year and solve important problems with solutions on daily basis to get more score in school exams and tests

Worksheet for Class 12 Chemistry Unit 1 The Solid State

Class 12 Chemistry students should refer to the following printable worksheet in Pdf for Unit 1 The Solid State in Class 12. This test paper with questions and answers for Class 12 will be very useful for exams and help you to score good marks

Class 12 Chemistry Worksheet for Unit 1 The Solid State

Important Questions for NCERT Class 12 Chemistry Solid State

Question. Gold has a face centred cubic lattice with an edge length of the unit cube of 407 pm. Assuming the closest packing, the diameter of the gold atom is
(a) 576.6 pm
(b) 287.8 pm 
(c) 352.5 pm
(d) 704.9 pm

Answer :  B

Question. Which is not correct about the Schottky defects?
(a) Both cations and anions are missing from their lattice sites without affecting the stoichiometry of the compound
(b) Because of presence of holes the lattice energy decreases.
(c) The presence of holes causes the density of the crystal to decrease.
(d) The defect increases the electrical conductivity of the solid due to migration of the ions into the holes.

Answer :  B

Question. Schottky defect defines imperfection in the lattice structure of 
(a) solid
(b) gas
(c) liquid
(d) plasma

Answer :  A

Question. An AB2 type structure is found in
(a) NaCl
(b) CaF2
(c) Al2O3
(d) N2O

Answer :  B

Question. An element (atomic mass 100 g/mol) having bcc structure has unit cell edge 400 pm. The density of element is (No. of atoms in bcc, Z = 2). 
(a) 2.144 g/cm3
(b) 7.289 g/cm3
(c) 5.188 g/cm3
(d) 10.376 g/cm3

Answer :  C

Question. What is the coordination number of sodium in Na2O? 
(a) 6
(b) 4
(c) 8
(d) 2

Answer :  B

Question. The crystal system of a compound with unit cell dimensions "a = 0.387, b = 0.387 and c = 0.504 nm and α = β = 90° and γ = 120°" is : 
(a) cubic
(b) hexagonal
(c) orthorhombic
(d) rhombohedral

Answer :  B

Question. If z is the number of atoms in the unit cell that represents the closest packing sequence ..... ABC ABC ......, the number of tetrahedral voids in the unit cell is equal to :
(a) z
(b) 2z
(c) z/2
(d) z/4

Answer :  B

Question. The compound, found in nature in gas phase but ionic in solid state is : 
(a) PCl5
(b) CCl4
(c) PCl3
(d) POCl3

Answer :  A

Question. The Ca2+ and F– are located in CaF2 crystal, respectively at face centred cubic lattice points and in 
(a) Tetrahedral voids
(b) Half of tetrahedral voids
(c) Octahedral voids
(d) Half of octahedral voids

Answer :  A

Question. The coordination number in hcp is 
(a) 6
(b) 12
(c) 18
(d) 24

Answer :  B

Question. The space lattice of graphite is 
(a) Cubic
(b) Tetragonal
(c) Rhombic
(d) Hexagonal

Answer :  D

Question. Coordination numbers of Zn2+ and S2– in the crystal structure of wurtzite are 
(a) 4, 4
(b) 6, 6
(c) 8, 4
(d) 8, 8

Answer :  A

Question. If AgI crystallises in zinc blende structure with I– ions at lattice points. What fraction of tetrahedral voids is occupied by Ag+ ions?
(a) 25%
(b) 50%
(c) 100%
(d) 75%

Answer :  B

Question. Which set of following characteristics for ZnS crystal is correct? 
(a) Coordination number (4 : 4); ccp; Zn2+ ion in the alternate tetrahedral voids
(b) Coordination number (6 : 6); hcp; Zn2+ ion in all tetrahedral voids.
(c) Coordination number (6 : 4); hcp; Zn2+ ion in all octahedral voids
(d) Coordination number (4 : 4); ccp; Zn2+ ion in all tetrahedral voids.

Answer :  A

Question. Molecules/ions and their magnetic properties are given below. 
Molecule/ion Magnetic property
(i) C6H6 (1) Antiferromagnetic
(ii) CrO2 (2) Ferrimagnetic
(iii) MnO (3) Ferromagnetic
(iv) Fe3O4 (4) Paramagnetic
(v) Fe3+ (5) Diamagnetic
The correctly matched pairs in the above is
(a) i-5, ii-3, iii-2, iv-1, v-4
(b) i-3, ii-5, iii-1, iv-4, v-2
(c) i-5, ii-3, iii-1, iv-2, v-4
(d) i-5, ii-3, iii-1, iv-4, v-2

Answer :  C

Question. Which one of the following statements about packing in solids is incorrect ?
(a) Coordination number in bcc mode of packing is 8.
(b) Coordination number in hcp mode of packing is 12.
(c) Void space in hcp mode of packing is 32%.
(d) Void space is ccp mode of packing is 26%.

Answer :  C

Question. Sodium metal crystallizes in a body centred cubic lattice with a unit cell edge of 4.29Å. The radius of sodium atom is approximately : 
(a) 5.72Å
(b) 0.93Å
(c) 1.86Å
(d) 3.22Å

Answer :  C

Question. The existence of a substance in more than one solid modifications is known as 
(a) isomorphism
(b) Polymorphism
(c) Amorphism
(d) Allotropy

Answer :  B

Question. An element (atomic mass = 100 g / mol) having bcc structure has unit cell edge 400 pm. Then, density of the element is 
(a) 10.376 g/cm3
(b) 5.188 g/cm3
(c) 7.289 g/cm3
(d) 2.144 g/cm3

Answer :  B

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CBSE Class 12 Chemistry Unit 1 The Solid State Worksheet

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Worksheet for Chemistry CBSE Class 12 Unit 1 The Solid State

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Unit 1 The Solid State CBSE Class 12 Chemistry Worksheet

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Worksheet for CBSE Chemistry Class 12 Unit 1 The Solid State

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