Question

To which of the following mixtures Dalton's law is not applicable?

• A. $C{O}_2$ and CO at room temperature
• B. Ammonia and hydrogen chloride at room temperature
• C. $N{H}_3$ and steam at room temperature
• D. He and $H_2$

Answer 1

Answer: (B), (C)

$N{H}_3$ and steam at room temperature
Ammonia and hydrogen chloride at room temperature

Dalton's Law of Partial Pressure, and it states that the pressure of a gas mixture is the sum of the partial pressures of the individual components of the gas mixture.

Ammonia and hydrogen chloride at room temperature and $N{H}_3$ and steam at room temperature react with each other.

So Dalton's law is not applicable Ammonia and hydrogen chloride at room temperature and $N{H}_3$ and steam at room temperature.

Hence options B & C are correct.