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JEE • CHEMISTRY • SOLID STATE

Solid state practice · Easy

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Practice format and chapter quiz

These sets use single-correct-answer MCQs. They do not cover every JEE Main or JEE Advanced question format and are not full-length mock papers.

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Showing 1-30 of 85 questions
1 Easy
1 of 85
Remembering +4 | -1
In CaF2{CaF}_2, fluorite type structure, F−{F}^{-}ions occupy
View answer and explanation
Correct option: A
All the tetrahedral voids
Option A (All the tetrahedral voids) is correct because in the CaF2 fluorite structure, Ca2+ ions form the ccp lattice and F- ions occupy all the tetrahedral voids.
2 Easy
2 of 85
Analyzing +4 | -1
A mineral having the formula AB2\mathrm{AB}_2 crystallizes in ccp lattice with A\mathrm{A} atoms occupying the lattice points. Pick out the correct statements of the following
View answer and explanation
Correct option: A
100%100 \% occupancy of tetrahedral voids, C.N. of B=4\mathrm{B}=4
Option A (100 % occupancy of tetrahedral voids, C.N. of B=4) is correct because in a ccp lattice with A atoms at lattice points, there are 4 A atoms per unit cell, requiring 8 B atoms to satisfy the AB2 formula. This means all 8 tetrahedral voids are occupied, and the coordination number of B in a tetrahedral void is 4.
3 Easy
3 of 85
Remembering +4 | -1
Which one of the following metal oxides is antiferromagnetic in nature?
View answer and explanation
Correct option: A
MnO2\mathrm{Mn}{\mathrm{O}_2}
Option A (MnO2\mathrm{Mn}{\mathrm{O}_2}) is correct because manganese dioxide (MnO2\mathrm{Mn}{\mathrm{O}_2}) exhibits antiferromagnetic behavior.
4 Easy
4 of 85
Remembering +4 | -1
Wax is an example of :
View answer and explanation
Correct option: C
Molecular crystal
Option C (Molecular crystal) is correct because wax consists of large organic molecules held together by weak intermolecular forces.
5 Easy
5 of 85
Remembering +4 | -1
Which among the following is an example of ferro magnetic compound
View answer and explanation
Correct option: C
CrO2Cr{O_2}
Correct Answer + Core Reason: Option C (CrO2CrO_2) is correct because chromium dioxide (CrO2CrO_2) is a well-known ferromagnetic material.
6 Easy
6 of 85
Remembering +4 | -1
The number of atoms (n)\left( n \right) contained within a body centred cubic cell is:
View answer and explanation
Correct option: B
2
Option B (2) is correct because a body-centered cubic cell has one atom at each of the 8 corners (each contributing 1/8) and one atom at the center, totaling 2 atoms.
7 Easy
7 of 85
Remembering +4 | -1
Amorphous solids:
View answer and explanation
Correct option: C
Do not undergo clean cleavage when cut with knife
The correct answer is C (Do not undergo clean cleavage when cut with knife) because amorphous solids lack long-range order and thus break irregularly.
8 Easy
8 of 85
Remembering +4 | -1
A solid having no definite shape is called :
View answer and explanation
Correct option: A
Amorphous solid
Option A (Amorphous solid) is correct because a solid having no definite shape is called an amorphous solid.
9 Easy
9 of 85
Remembering +4 | -1
Crystals can be classified into ……. Basic crystal habits.
View answer and explanation
Correct option: A
7
Option A (7) is correct because crystals can be classified into 7 basic crystal habits.
10 Easy
10 of 85
Remembering +4 | -1
The crystal are bounded by plane faces (f)(f), straight edges (e)(e) and interfacial angel (c)(c). The relationship between these is :
View answer and explanation
Correct option: A
f+c=e+2f + c = e + 2
Option A (f+c=e+2f + c = e + 2) is correct because it represents Euler's formula for polyhedra, relating faces, edges, and vertices (or interfacial angles in this context).
11 Easy
11 of 85
Analyzing +4 | -1
The cation-anion bond have the largest amount of covalent character for:
View answer and explanation
Correct option: C
CdS\mathrm{CdS}
Option C (CdS\mathrm{CdS}) is correct. CdS has the most covalent character due to the smaller size and higher polarizing power of Cd²⁺ compared to the other metal ions.
12 Easy
12 of 85
Remembering +4 | -1
The statement that “All crystals of the same substance possess the same elements of symmetry” is known as :
View answer and explanation
Correct option: C
The law of constancy of symmetry
Option C (The law of constancy of symmetry) is correct because the statement that \"All crystals of the same substance possess the same elements of symmetry\" is known as the law of constancy of symmetry.
13 Easy
13 of 85
Remembering +4 | -1
Crystals can be classified into ……. Basic crystal habits.
View answer and explanation
Correct option: A
7
Option A (7) is correct because crystals are classified into 7 basic crystal systems or habits: cubic, tetragonal, orthorhombic, monoclinic, triclinic, hexagonal, and rhombohedral.
14 Easy
14 of 85
Remembering +4 | -1
The arrangement ABCABC……is referred to as,
View answer and explanation
Correct option: D
Cubic close packing
Option D (Cubic close packing) is correct because the ABCABC... arrangement is characteristic of cubic close-packed (ccp) structures.
15 Easy
15 of 85
Remembering +4 | -1
The coordination number of Na+  in  NaCl\mathrm{N}{\mathrm{a}^ + }\;in\;\mathrm{NaCl} is
View answer and explanation
Correct option: A
6
Option A (6) is correct because in the NaCl crystal structure, each Na+\mathrm{Na}^+ ion is surrounded by six Cl−\mathrm{Cl}^- ions, giving it a coordination number of 6.

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16 Easy
16 of 85
Remembering +4 | -1
An insulator oxide is :
View answer and explanation
Correct option: D
All of these
Option D (All of these) is correct because CuO, COOC_O O, and Fe2O3Fe_2O_3 are all oxides that exhibit insulating properties.
17 Easy
17 of 85
Analyzing +4 | -1
Among the following which one has the highest cation to anion size ratio?
View answer and explanation
Correct option: C
CsF\mathrm{CsF}
Option C is correct because CsF has the largest cation (Cs+) and the smallest anion (F-) among the given options, resulting in the highest cation to anion size ratio.
18 Easy
18 of 85
Remembering +4 | -1
A solid having definite geometrical shape with flat faces and sharp edges is :
View answer and explanation
Correct option: B
Crystalline solid
Option B (Crystalline solid) is correct because crystalline solids are characterized by a definite geometrical shape, flat faces, and sharp edges due to their ordered arrangement of atoms.
19 Easy
19 of 85
Remembering +4 | -1
Metallic crystalline solids :
View answer and explanation
Correct option: C
Are good conductors of heat and electricity
Option C (Are good conductors of heat and electricity) is correct because metallic crystalline solids have delocalized electrons that facilitate the conduction of heat and electricity.
20 Easy
20 of 85
Understanding +4 | -1
A solid XX melts slightly above 273  K273\;K and is a poor conductor of heat and electricity. To which of the following categories does it belong?
View answer and explanation
Correct option: D
Molecular
The correct answer is D. Molecular solids have low melting points and are poor conductors of heat and electricity.
21 Easy
21 of 85
Remembering +4 | -1
The elements commonly used for making transistors are
View answer and explanation
Correct option: D
Si and Ge
Option D (Si and Ge) is correct because silicon (Si) and germanium (Ge) are the most commonly used semiconductors in transistors.
22 Easy
22 of 85
Remembering +4 | -1
The ratio of cations to anion in a closed pack tetrahedral is :
View answer and explanation
Correct option: B
0.2250.225
Option B (0.225) is correct because the ideal radius ratio for a tetrahedral void is between 0.225 and 0.414, with 0.225 being the lower limit.
23 Easy
23 of 85
Remembering +4 | -1
What is the number of tetrahedral voids per atom in a crystal?
View answer and explanation
Correct option: B
2
Option B (2) is correct because there are 2 tetrahedral voids per atom in a crystal.
24 Easy
24 of 85
Remembering +4 | -1
Which of the following is a covalent solid
View answer and explanation
Correct option: D
All
Correct Answer + Core Reason: Option D (All) is correct because Fe2O3Fe_2O_3, NaClNaCl, and CO2CO_2 all exhibit covalent bonding.
25 Easy
25 of 85
Remembering +4 | -1
Which substance shows antiferromagnetism?
View answer and explanation
Correct option: D
Mn2O3\mathrm{M}{\mathrm{n}_2}{\mathrm{O}_3}
Option D (Mn2O3\mathrm{M}{\mathrm{n}_2}{\mathrm{O}_3}) is correct because it exhibits antiferromagnetism due to the alignment of magnetic moments in opposite directions, resulting in a net magnetic moment of zero.
26 Easy
26 of 85
Analyzing +4 | -1
Which is the incorrect statement
View answer and explanation
Correct option: D
FeO0.98Fe{O_{0.98}} has non-stoichiometric metal deficiency defect
The correct answer is FeO0.98Fe{O_{0.98}} has non-stoichiometric metal deficiency defect because it actually exhibits a metal deficiency defect, not a metal excess defect.
27 Easy
27 of 85
Remembering +4 | -1
Cation and anion combines in a crystal to form following type of compound
View answer and explanation
Correct option: A
Ionic
Option A (Ionic) is correct because cations and anions combine through electrostatic attraction to form ionic compounds in a crystal lattice.
28 Easy
28 of 85
Remembering +4 | -1
What is the coordination number of body centred cube?
View answer and explanation
Correct option: A
8
Option A (8) is correct because in a body-centered cubic structure, each atom is surrounded by 8 nearest neighbors.
29 Easy
29 of 85
Remembering +4 | -1
In a cubic close packing of spheres in three dimensions, the co-ordination number of each sphere is :
View answer and explanation
Correct option: D
12
Option D (12) is correct because in a cubic close-packed structure, each sphere is surrounded by 12 other spheres, giving it a coordination number of 12.
30 Easy
30 of 85
Remembering +4 | -1
The one that is extensively used as a piezoelectric material is
View answer and explanation
Correct option: A
Quartz
Correct Answer + Core Reason: Option A (Quartz) is correct because quartz is a well-known piezoelectric material.
Revision notes and key takeaways

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Key Takeaways

  • ✓ This set contains 85 single-correct-answer MCQs on SOLID STATE.
  • ✓ Try each question before opening its answer. Read the explanation where one is available.
  • ✓ Sign in to save submitted answers. Revisit incorrect answers alongside your textbook or class notes.
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