In electrophoresis,what happens to the movement of particles?

Gold sol is not:

The critical micelle concentration $(CMC)$ of a soap solution is $5 \times 10^{-4} \ mol \ L^{-1}$. Identify the correct statements about this solution.
$I$. The micelle is stable if the soap solution concentration is $10^{-7} \ mol \ L^{-1}$
$II$. The micelle is stable if the soap solution concentration is higher than $5 \times 10^{-4} \ mol \ L^{-1}$
$III$. Micelles are also known as associated colloids.

Match the following columns based on the type of colloids:

Why do painters add oil to paint when painting a wall with oil paint?

If some gelatin is mixed in a colloidal solution of gold,then it does: