Question

Which mixture of gases at room temperature does not obey Dalton's law of partial pressures?

• A. $N{O}_2$ and $O_2$
• B. $N{H}_3$ and $HCl$
• C. $CO$ and $C{O}_2$
• D. $S{O}_2$ and $S{O}_3$

Answer 1

The correct option is B $N{H}_3$ and $HCl$

$N{H}_3$ and $HCl$ mixture would not follow Dalton's law of partial pressure as they react to form $N{H}_{4}Cl$.
$N{H}_3\left(g\right)+HCl\left(g\right)\to N{H}_{4}Cl\left(s\right)$