IIT JEE Chemistry Practice Paper on Topic – Solid State -Part 9 – PYQs

IIT JEE Chemistry Practice Paper – Part 9 covers the topic of Solid State, a fundamental concept in Physical Chemistry. This section focuses on crystal lattices, unit cells, packing efficiency, defects in solids, and electrical properties. Many tricky and conceptual questions are asked from this topic in JEE Main and Advanced. In this practice paper, you will find 10 carefully selected multiple-choice questions inspired by previous years’ exams. Each question comes with detailed solutions and explanations to help you clear concepts, avoid common mistakes, and build the confidence needed to tackle Solid State questions in the actual exam.

IIT JEE Chemistry Practice Paper – Part 9 (Solid State)

Instructions: Attempt all 10 questions. Each correct answer carries 4 marks. No negative marking here. After submitting, you’ll see your score, number of correct/wrong answers, and explanations.

Q1. Which of the following is an example of ionic solid?

Diamond
Sodium chloride
Graphite
Ice

Q2. In body-centered cubic (bcc) arrangement, the coordination number of each atom is:

4
6
8
12

Q3. The packing efficiency in a face-centered cubic (fcc) lattice is:

52.4%
68.0%
74.0%
60.0%

Q4. Schottky defect is observed in:

KCl
ZnS
AgCl
FeO

Q5. Which type of solid shows electrical conductivity in solid as well as molten state?

Covalent solids
Ionic solids
Metallic solids
Molecular solids

Q6. The number of atoms per unit cell in a simple cubic structure is:

1
2
4
6

Q7. Frenkel defect is usually observed in:

NaCl
KCl
AgBr
CsCl

Q8. The edge length of a unit cell is 400 pm. If it is fcc, the radius of the atom is approximately:

141 pm
200 pm
282 pm
173 pm

Q9. Which of the following is not a crystalline solid?

Quartz
Glass
Sodium chloride
Diamond

Q10. In hexagonal close packing (hcp), the percentage of empty space is:

26%
32%
40%
20%