1.

Which one of the following is not a surfactant ?

Answer»

`CH_(3) - (CH_(2))_(15) - N^(+)(CH_(3))_(3)Br^(-)`
`CH_(3) - (CH_(2))_(14) - CH_(2)-NH_(2)`
`CH_(3) - (CH_(2))_(16) - CH_(2)OSO_(2)overset(-)Na^(+)`
`OHC - (CH_(2))_(14) - CH_(2) - COO - Na^(+)`

Answer :B


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