Which of the following is a hydrophilic colloidal sol?

When a sulphur sol is evaporated,sulphur is obtained. On mixing with water,the sulphur sol is not formed. The sol is

Blood may be purified by

Match List-$I$ with List-$II$.

List-$I$	List-$II$
$A$. Lyophilic colloid	$I$. Liquid-liquid colloid
$B$. Emulsion	$II$. Protective colloid
$C$. Positively charged colloid	$III$. $FeCl_3 + NaOH$
$D$. Negatively charged colloid	$IV$. $FeCl_3 + \text{hot water}$

Choose the correct answer from the options given below:

Pick out the statement which is not relevant in the discussion of colloids.

The correct statement$(s)$ related to colloids is(are):
$(A)$ The process of precipitating colloidal sol by an electrolyte is called peptization.
$(B)$ Colloidal solution freezes at a higher temperature than the true solution at the same concentration.
$(C)$ Surfactants form micelles above the critical micelle concentration $(CMC)$. $CMC$ depends on temperature.
$(D)$ Micelles are macromolecular colloids.