InterviewSolution
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InterviewSolution
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which of the following forms cationic micelles above certain concentration?A. Sodium ethyl sulphateB. Sodium acetateC. UreaD. Cetyl trimethyl ammonium bromide |
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Answer» Correct Answer - D Cetyltrimethylammonium bromide forms cationic micelles above a certain concentration. In the molecule of detergents and soap, the negative ions aggregate to form a micelle of colloidal size. In polar medium (like water), the negative ion has a long hydrocarbon chain and a polar group `(-COO^(-))` at one end and on other end, it has `N^(+)` ion, thus cationic micelle is formed. |
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