$A$ plot of $\log (x / m)$ versus $\log (P)$ for the adsorption of a gas on a solid gives a straight line with a slope of:

For a linear plot of $\log(x/m)$ versus $\log p$ in a Freundlich adsorption isotherm,which of the following statements is correct? ($k$ and $n$ are constants)

The statement not applicable to chemisorption is

Adsorption of a gas on solids follows Freundlich adsorption isotherm. The graph drawn between $\log \frac{x}{m}$ (on y-axis) and $\log p$ (on x-axis) is a straight line with slope equal to $3$ and intercept equal to $0.30$. What is the value of $\frac{x}{m}$ at a pressure of $2 \ atm$?
(Given; $\log 2 = 0.3$ )

Which among the following gases is least adsorbed on a solid at similar conditions of temperature and pressure?

If the value of $\frac{1}{n}$ is equal to $1$ in the Freundlich adsorption isotherm, then $\frac{x}{m} = $ (where $x = $ mass of adsorbate, $m = $ mass of the adsorbent, $p = $ pressure of the gas).