1.

Which one of the following is not a surfactant?A. `CH_(3)-(CH_(2))_(15)-overset(CH_(3))overset(|)underset(CH_(3))underset(|)(N^(+))-CH_(3)Br^(-)`B. `CH_3-(CH_2)_(14)-CH_2-NH_2`C. `CH_3-(CH_2)_(16)-CH_2OSO_2-Na^(+)`D. `OHC-(CH_2)_(14)-CH_2-COO-Na^(+)`

Answer» Correct Answer - B
Surfactant are those which have charge on their tail e.g. cetyltrimethyl ammonium bromide.
Surfactants are those, which dissociate in water to yield positively charge ion.
so`CH_(3)(CH_2)_(14)-CH_(2)-NH_(2)`
is not surfactant .


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