Blood may be purified by

Which one of the following is not a colloidal solution?

Which of the following phenomena is kinetic in nature?

Using very little soap while washing clothes does not serve the purpose of cleaning clothes because ..... .

$Statement-1$: Micelles are formed by surfactant molecules above the critical micellar concentration $(CMC)$.
$Statement-2$: The conductivity of a solution having surfactant molecules decreases sharply at the $CMC$.

Soap acts as a cleansing agent because ...