Liquids and Solids MCQs

1. Which of the following has strongest intermolecular forces of attraction?

A. Hydrogen (H2)

B. Chlorine (Cl2)

C. iodine (I2)

D. Methane (CH4)

✅ The correct answer is option C.

2. Which has the strongest bonding in the solid state?

A. Hydrogen Chloride (HCI)

B. Chlorine (Cl2)

C. Xenon(Xe)

D. Sodium Chloride (NaCI)

✅ The correct answer is option D.

3. When substance moves from a solid to a liquid state all of the following changes occur except

A. Molecules become more disordered

B. K.E of the molecules decreases

C. Intermolecular forces become weaker

D. Molecule become further separated

✅ The correct answer is option B.

4. When the atoms of the third layer are arranged in such a way that they directly lie above the atoms of the first layer then this arrangement is called

A. ABAB (hexagonal)

B. ABCABC (Cubic)

C. Orthorhombic

D. Rhombohedral

✅ The correct answer is option A.

5. In order to mention the boiling point of water at 110?C the external pressure should be

A. Between 760 torr and 1200 torr

B. Between 200 torr and 760 torr

C. 765 torr

D. any value of pressure

✅ The correct answer is option A.

6. Which one is false for evaporation?

A. Surface phenomenon

B. Continuous

C. Exothermic

D. Cause cooling

✅ The correct answer is option C.

7. Vapour pressure of water at 100 degrees C is

A. 55 mm Hg

B. 760 mm Hg

C. 355 mm Hg

D. 1489 mm Hg

✅ The correct answer is option B.

8. Which one of the following does not show hydrogen bonding?

A. Water

B. Ethyl alcohol

C. Phenol

D. Diethyl ether

✅ The correct answer is option D.

9. Liquid crystal is discovered by

A. William Crooks

B. Fredrick Reinitzer

C. J.J Thomson

D. Bravis

✅ The correct answer is option B.

10. Which one is a conductor but is not malleable?

A. Iron

B. Graphite

C. Silver

D. Platinum

✅ The correct answer is option B.