Which of the following gas mixtures will not obey Dalton's law of partial pressure?

$A$ gaseous mixture of $3$ gases $A$, $B$ and $C$ has a pressure of $10 \,atm$. The total number of moles is $10$. If the partial pressures of gases $A$ and $B$ are $3 \,atm$ and $1 \,atm$ respectively, and the molar mass of gas $C$ is $2 \,g/mol$, calculate the weight of $C$ in the mixture. (in $\,g$)

The ratio $\gamma$ for inert gases is

The rate of diffusion of hydrogen is......

On what factor does the magnitude of surface tension depend?

What is viscosity?