Which one of the following is correct for the adsorption of a gas at a given temperature on a solid surface?

Under what conditions does the rate of physisorption increase?

Noble gases are adsorbed by

Statement $I$: Silica gel and alumina are used as adsorbents for adsorption chromatography.
Statement $II$: Paper chromatography is a type of partition chromatography.
In the light of the above statements,select the correct option.

What is the role of desorption in the process of catalysis?

For the adsorption of a solution on a solid surface,the Freundlich adsorption isotherm is given by $\frac{x}{m} = k C^{1/n}$. The plot of $\log (\frac{x}{m})$ versus $\log C$ is shown below. This corresponds to which of the following conditions?