Which of the following mixture of gases at room temperature follows Dalton's law of partial pressure — States of Matter and Gaseous State Chemistry Question

💡 Solution & Explanation

Dalton's law of partial pressures is valid only for non-reacting gases. $NH_3$ and $HCl$ react to form solid $NH_4Cl$ [6]. $NO$ and $O_2$ react to form $NO_2$ gas [6]. $H_2$ and $O_2$ do not react at room temperature without a catalyst or spark, so they follow Dalton's law [6].