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

Explain the vapour pressure of a liquid.

State Dalton$'$s law of partial pressures.

In a mixture of $CO_2$ and $CH_4$ in a closed vessel at a constant temperature,the total pressure is $8.3 \times 10^4 \, Pa$. If the partial pressure of $CO_2$ is $2.8 \times 10^4 \, Pa$,what will be the partial pressure of $CH_4$?

If equal amounts of methane and oxygen are mixed in an empty container at $25 \, ^oC$,what is the fraction of total pressure exerted by oxygen?

In a container,the mole ratio of two gases $A$ and $B$ is $2 : 5$. The total pressure of the container is $3.5 \times 10^5 \ Pa$. If all molecules of $A$ are removed from the container,what will be the pressure exerted by the molecules of $B$?