Which of the following are gaseous solutions?
(A) Chloroform mixed with N2 gas
(B) Camphor in N2 gas
(C) Hydrogen in Palladium
(D) Oxygen in water
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → (A) and (B) only
A solution is classified by the physical state of its solvent, the component present in the larger amount; the solute may be a gas, a liquid or a solid. A gaseous solution is one whose solvent is a gas.
(A) Chloroform mixed with \( \ce{N2} \) gas — Correct. The solvent is nitrogen, a gas; the solute (chloroform) is a liquid.
(B) Camphor in \( \ce{N2} \) gas — Correct. The solvent is again nitrogen gas; the solute (camphor) is a solid.
(C) Hydrogen in Palladium — Incorrect. Palladium is a solid solvent, so this is a solid solution (gas in solid).
(D) Oxygen in water — Incorrect. Water is a liquid solvent, so this is a liquid solution (gas in liquid).
NCERT (2026-27 edition):
Types of Solutions – …
