The gold numbers of $A, B, C$ and $D$ are $0.04, 0.002, 10$ and $25$ respectively. The protective power of $A, B, C$ and $D$ are in the order:

Match column $I$ (process) with column $II$ (application).

Column $I$	Column $II$
$A$. Dialysis	$a$. Cleansing action of soap
$B$. Peptization	$b$. Coagulation
$C$. Emulsification	$c$. Colloidal solution preparation
$D$. Electrophoresis	$d$. Purification of colloidal solution

Consider the following statements for a gold sol:
$(I)$ It is a macromolecular colloid.
$(II)$ It is a lyophobic sol.
$(III)$ It is a negatively charged sol.
$(IV)$ It is a multimolecular colloid.
$(V)$ It is an associated colloid.
The correct statements are:

Which of the following is a hydrophilic sol?

Among the following,the false statement is

Which among the following is a negatively charged sol?