Lyophilic sols are more stable than lyophobic sols because:

$3.12 \mathrm{g}$ of oxygen is adsorbed on $1.2 \mathrm{g}$ of platinum metal. The volume of oxygen adsorbed per gram of the adsorbent at $1 \mathrm{atm}$ and $300 \mathrm{K}$ in $\mathrm{L}$ is            

$\left[\mathrm{R}=0.0821 \mathrm{L} \mathrm{atm} {\mathrm{K}}^{-1} {\mathrm{mol}}^{-1}\right]$

Match List I with List II :
    List-I                                  List-II

Example of colloids            Classification
(a) Cheese                   (i) dispersion of liquid in liquid
(b) Pumice stone         (ii) dispersion of liquid in gas
(c) Hair cream             (iii) dispersion of gas in solid
(d) Cloud                     (iv) dispersion of liquid in solid

Choose the most appropriate answer from the options given below