NEET 2004 Chemistry question

Not in JEE Main or NEET syllabus

Which of the following forms cationic micelles above certain concentration :-

(1)sodium acetate
(2)Urea
(3)Cetyl trimethylammonium chlorideCorrect
(4)Sodium dodecyl sulphate

Answer: (3)

Solution

Micelles are formed by surfactants (long hydrophobic tail plus a polar head) above the critical micelle concentration. Cetyl trimethylammonium chloride, , has a positively

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Question ID VK-089386