MCQs 1 on CHAPTER 1 => Solid State

This are MCQs 1 on CHAPTER 1 => Solid State. Practice MCQs to check your knowledge for Entrance examination like CBSE Board etc

1. Amorphous solids

• possess sharp melting points
• undergo clean cleavage when cut with knife
• do not undergo clean cleavage when cut with knife
• possess orderly arrangement over long distances

2. The unit cell with crystallographic dimension a = b ≠ c; α = β = γ = 90⁰ is

• Cubic
• Tetragonal
• Monoclinic
• Hexagonal

3. The interparticle forces in solid hydrogen are

• Hydrogen Bonds
• Covalent Bonds
• Co-Ordinate Bonds
• Van Der Waal's Forces

4. NaCl crystal belongs to the crystal system.

• Hexagonal
• Cubic
• Tetragonal
• Orthorhombic

5. Ionic solids are characterized by

• low melting points
• good conductivity in solid state
• high vapour pressure
• solubility in polar solvents

6. The force of attraction between the atoms of helium is

• hydrogen bonding
• coordinate covalent bond
• covalent bond
• london dispersion force

7. Which of the following is a pseudo-solid

• CaF₂
• Glass
• NaCl
• All

8. Diamond is a bad conductor because

• It has a tight structure
• It has a high density
• There is no free electron present in the crystal of diamond to conduct electricity
• None of the above

9. The weakest intermolecular for a

• dipole–dipole force
• electrostatic force between ions
• ion–dipole force
• dipole–induced dipole force

10. In liquids intermolecular forces are

• very weak
• very strong
• reasonably strong
• ion–dipole force