Question

Which one of the following forms micelles in aqueous solution above certain concentration?

Answer 1

Answer:

The answer is Dodecyl trimethyl ammonium chloride.

Explanation:

Dodecyl Trimethyl Ammonium Chloride is a white crystalline substance.It is soluble in ethanol and water. It loses its stability above 100℃  and show compatibility with surfactants.

Aqueous solution of Dodecyl Trimethyl Ammonium Chloride exhibits the property of miscelle. It forms miscelle when dissolved its certain amount in aqueous solution.

The tail of this salt is non polar while the cationic head is polar and this is the required condition for miscelle formation.  

Answer 2

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Dodecyl trimethyl ammonium chloride forms micelles in the aqueous solution above a certain concentration. Dodecyl trimethyl ammonium chloride is a cationic detergent. Soaps and detergents form micelles in the aqueous solution above certain concentrations.