Correct statement(s) about the associated colloid is/are

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In electrophoresis experiment, micelle of sodium stearate migrate towards anode.

Generally the formation of micelles is entropy driven at the temperature greater than kraft temperature

With increasing the number of Carbons in the soap, both critical micelle concentration and kraft temperature decreases.

(sodium stearate)At the temperature greater than craft temperature, with increasing the temperature, critical micelle concentration decreases it reaches minimum and then increases.

answer is A, B, D.

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Detailed Solution

A) For formation of micelle: $Δ H_{s y s} + v e, Δ S_{s y s} + v e, Δ S_{s u r} - v e, Δ S_{t o t a l} + v e, Δ G_{s y s} - v e .$ Formation of micelle is entropy driven.
B) Above the $T_{k}$ , increase of temperature decreases hydration of hydrophilic group which favour micellization and hence CMC decreases. After certain T, increase of temperature produces distortion in the structure of water around the hydrophobic group, an effect disfavour micellization, CMC increases.
C) With increasing the number of Carbons in the soap/detergent, its solubility in water decreases and hence CMC decreases.
$T_{k} α$ number of Carbons in the surfactant
D) $C_{17} H_{2} C O O^{-}$ forms negative micelle