Give uses of silica gel.

What is adsorption,adsorbate,adsorbent and desorption? Explain with appropriate examples.

Methylene blue,from its aqueous solution,is adsorbed on activated charcoal at $25 \ ^{\circ}C$. For this process,the correct statement is

The correct option representing a Freundlich adsorption isotherm is

Shown below are adsorption isotherms for a gas '$X$' at temperatures $T_1$,$T_2$,and $T_3$. Here,$p$ and $\frac{x}{m}$ represent pressure and the extent of adsorption,respectively. The correct order of temperatures for the given adsorption is:

During the adsorption of krypton on activated charcoal at low temperature,which of the following thermodynamic conditions is true?