Why are powdered substances more effective adsorbents than their crystalline forms?

In the adsorption of acetic acid on activated charcoal,the acetic acid is an

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.

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; $\log 2 = 0.3$ )

During adsorption,the $\Delta H$ is negative and the magnitude of this negative value

Which among the following statements is false?