The equation which represents Freundlich adsorption isotherm is ( $x=$ amount of gas, $m=$ mass of solid)

Which one of the following is not the correct characteristic property of physical adsorption?

In each of four separate beakers (I, II, III, IV), $X \mathrm{~mL}$ of $y \mathrm{M} \mathrm{Fe}_2 \mathrm{O}_3 x \mathrm{H}_2 \mathrm{O}$ colloidal solution is present. Equal volume and equal concentration of KCl , $\mathrm{K}_4\left[\mathrm{Fe}(\mathrm{CN})_6\right], \mathrm{K}_3 \mathrm{PO}_4$ and $\mathrm{K}_2 \mathrm{SO}_4$ was added into I, II, III and IV respectively.

The efficiency of precipitations in these beakers follows the order

$$ \text { Match the following } $$

$$ \begin{array}{clll} \hline & \text { List-I (Compound) } & & \text { List-II (Use) } \\ \hline \text { (A) } & \text { Kieselghur } & \text { (I) } & \text { Chromatographic material } \\ \hline \text { (B) } & \text { Silica gel } & \text { (II) } & \text { Softening of hard Water } \\ \hline \text { (C) } & \text { ZSM-5 } & \text { (III) } & \text { Filtration plants } \\ \hline \text { (D) } & \text { Hydrated zeolites } & \text { (IV) } & \begin{array}{l} \text { To convert alcohol directly } \\ \text { into gasoline } \end{array} \\ \hline \end{array} $$

The correct answer is