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Question
Which one of the is not a surfactant?
Options
\[\ce{CH3 - (CH2)15 - \overset{+}{N} - (CH3)2 CH2Br}\]
\[\ce{CH3 - (CH2)15 - NH2}\]
\[\ce{CH3 - (CH2)16 - CH2 OSO^-_2 Na^+}\]
\[\ce{OHC - (CH2)14 - CH2 - COO^- Na^+}\]
Solution
\[\ce{CH3 - (CH2)15 - NH2}\]
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