Colloids

Under ambient conditions, which among the following surfactants will form micelles in aqueous solution at lowest molar concentration ?

Choose the correct reason(s) for the stability of the lyophobic colloidal particles.

Among the electrolytes $\ce{Na2SO4}$, $\ce{CaCl2}$, $\ce{Al2(SO4)3}$ and $\ce{NH4Cl}$, the most effective coagulating agent for $\ce{Sb2S3}$ sol is

Among the following, the surfactant that will form micelles in aqueous solution at the lowest molar concentration at ambient conditions is

STATEMENT-1: Micelles are formed by surfactant molecules above the critical micellar concentration (CMC).

because

STATEMENT-2: The conductivity of a solution having surfactant molecules decreases sharply at the CMC.