Question

Tick (✔) the most appropriate option.

The intermolecular forces between the molecules are minimum in case of:

• A. iron
• B. alcohol
• C. butter
• D. oxygen

Answer 1

The correct option is D

oxygen

The explanation for the correct option:

(D) Oxygen

• Gases are fluids that have the highest intermolecular spaces as they have the least intermolecular forces of attraction and can move freely occupying the entire free space they get to fill in.

The explanation for the incorrect options:

(A) Iron

• Solids show the highest inter-molecular forces of attraction in comparison to liquids & gases.

(B) Alcohol

• Liquids show intermediary inter-molecular forces of attraction i.e., less than solids but more than gases.

(C) Butter

• Although, butter & iron both are solids but in the case of iron, the cohesive forces(inter-molecular forces of attraction within the same substance) are stronger than that of butter particles.

Thus, option (D) is correct. The intermolecular forces between the molecules are minimum in the case of Oxygen.