# Solid State Important Questions (Amorphous and Crystalline Solids)

Solid State Important Questions (Amorphous and Crystalline Solids) for AIIMS, NEET, JEE provides a comprehensive coverage of the fundamental concepts in the fields of Solid State Chemistry. It contains a variety of questions from previous years’ AIIMS, NEET and JEE papers.

## Solid State Important Questions (Amorphous and Crystalline Solids)

#### 1. Which one of the following are the dimensions of cubic crystal?

a) a =b ≠ c

b) a = b = c and α = β ≠ γ = 90

c) a = b = c and α = β = γ = 90

d) a ≠ b = c and α = β ≠ γ = 90

Answer: a = b = c and α = β = γ = 90

a) Cubic

b) Trigonal

c) Triclinic

d) Hexaclinic

#### 3. In face-centred cubic cell, a unit cell is shared equally by __________

a) four unit cells

b) two unit cells

c) one unit cell

d) six unit cells

Answer: six unit cells

a) hexagonal

b) trigonal

c) triclinic

d) orthorhombic

#### 5. Which is the most unsymmetrical crystal system?

a) Triclinic crystal system

b) Cubic crystal system

c) Hexagonal crystal system

d) Trigonal crystal system

Answer: Triclinic crystal system

#### 6. In the simple cubic cell, each corner atom is shared by __________

a) eight unit cells

b) one unit cell

c) two unit cells

d) six unit cells

Answer: eight unit cells

#### 7. The points which shows the position of atoms in crystal are called as _________

a) crystal lattice

b) crystal parameters

c) bravais lattice

d) lattice point

a) cubic

b) tetragonal

c) monoclinic

d) triclinic

a) Ionic

b) Covalent

c) Molecular

d) Metallic

#### 10. Which is not a characteristic of crystalline solids?

a) They undergo a clean cleavage

b) They are true solids

c) They are isotropic

d) They have sharp melting points

Answer: They are isotropic

#### 11. Which of the following is a characteristic of amorphous solid?

a) They are true solids

b) They have sharp melting points

c) They undergo clear cleavage

d) They are isotropic

Answer: They are isotropic

#### 12. Solids are classified as ___________

a) crystalline and ionic solids

b) metallic and amorphous solids

c) molecular and covalent solids

d) crystalline and amorphous solids

Answer: crystalline and amorphous solids

#### 13. Quartz is an example of ___________

a) molecular solids

b) ionic solids

c) covalent solids

d) metallic solids

#### 14. Solid carbon dioxide is an example of _________

a) metallic crystal

b) covalent crystal

c) ionic crystal

d) molecular crystal