AllInfoHub – MCQ Practice

The States of Matter – Multiple Choice Questions (MCQs)

13. The 'a' constant in Van der Waals equation accounts for:
- A. Intermolecular forces
- B. Volume of gas molecules
- C. Kinetic energy
- D. Temperature
14. The 'b' constant in Van der Waals equation accounts for:
- A. Volume occupied by gas molecules
- B. Intermolecular forces
- C. Pressure
- D. Temperature
15. The temperature at which a real gas behaves like an ideal gas over an appreciable range of pressure is called:
- A. Boyle temperature
- B. Critical temperature
- C. Inversion temperature
- D. Boiling point
16. Critical temperature (Tc) is the temperature above which a gas cannot be liquefied, no matter how high the:
- A. Pressure
- B. Volume
- C. Temperature
- D. Density
17. Critical pressure (Pc) is the minimum pressure required to liquefy a gas at its:
- A. Critical temperature
- B. Boyle temperature
- C. Melting point
- D. Boiling point
18. What happens to the viscosity of liquids with an increase in temperature?
- A. Decreases
- B. Increases
- C. Remains same
- D. First increases then decreases
19. Surface tension of a liquid is due to:
- A. Cohesive forces
- B. Adhesive forces
- C. Both A and B
- D. Gravitational forces
20. Vapor pressure of a liquid increases with an increase in:
- A. Temperature
- B. Pressure
- C. Volume
- D. Surface area
21. The boiling point of a liquid is the temperature at which its vapor pressure becomes equal to the:
- A. Atmospheric pressure
- B. Critical pressure
- C. Partial pressure
- D. Osmotic pressure
22. Which of the following is an amorphous solid?
- A. Glass
- B. Diamond
- C. NaCl
- D. Quartz
23. Crystalline solids are characterized by:
- A. Long-range order
- B. Short-range order
- C. Irregular arrangement
- D. Isotropy
24. The existence of a substance in more than one crystalline form is called:
- A. Polymorphism
- B. Isomorphism
- C. Allotropy
- D. Amorphism

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The States of Matter – Multiple Choice Questions (MCQs)

13. The 'a' constant in Van der Waals equation accounts for:

14. The 'b' constant in Van der Waals equation accounts for:

15. The temperature at which a real gas behaves like an ideal gas over an appreciable range of pressure is called:

16. Critical temperature (Tc) is the temperature above which a gas cannot be liquefied, no matter how high the:

17. Critical pressure (Pc) is the minimum pressure required to liquefy a gas at its:

18. What happens to the viscosity of liquids with an increase in temperature?

19. Surface tension of a liquid is due to:

20. Vapor pressure of a liquid increases with an increase in:

21. The boiling point of a liquid is the temperature at which its vapor pressure becomes equal to the:

22. Which of the following is an amorphous solid?

23. Crystalline solids are characterized by:

24. The existence of a substance in more than one crystalline form is called:

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