10th Class Chemistry Chapter 2 Test02. Matter

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. Which of the following represents Avogadro’s law?
   1. V ∝ n
   2. V ∝ P
   3. V ∝ T
   4. PV = constant
2. Drug diffusion rate depends on:
   1. Volume of container only
   2. Pressure alone
   3. Concentration gradient
   4. Shape of drug molecules
3. The latent heat of fusion is associated with which phase change?
   1. Solid to liquid
   2. Liquid to gas
   3. Gas to liquid
   4. Solid to gas
4. Which of the following is an example of evaporation?
   1. Formation of bubbles in boiling water
   2. Drying of clothes on a line
   3. Melting of ice
   4. Condensation on glass
5. At the same temperature, which property of gas molecules is equal?
   1. Velocity
   2. Mass
   3. Average kinetic energy
   4. Density
6. In sublimation, a solid changes directly into:
   1. Plasma
   2. Gas
   3. Liquid
   4. Energy
7. In the cooling curve, during freezing (C to B), temperature:
   1. Increases continuously
   2. Remains constant
   3. Decreases rapidly
   4. Drops to zero
8. Diffusion of gases can be explained by:
   1. Boyle’s law
   2. Kinetic particle theory
   3. Charles’s law
   4. Avogadro’s law
9. Controlled-release formulations are designed to:
   1. Maintain consistent drug diffusion over time
   2. Speed up drug diffusion instantly
   3. Stop drug absorption completely
   4. Increase drug dosage suddenly
10. Deposition is the change of state from:
    1. Gas to solid
    2. Liquid to gas
    3. Solid to liquid
    4. Solid to gas