1.

Which of the following is stearyI trimethyl ammonium bromide

Answer»

`[CH_(3) - (CH_(2))_(15)-UNDERSET(CH_(3))underset(|)OVERSET(CH_(3))overset(|)(N)-CH_(3)]^(+) Br^(-)`
`[CH_(3)-(CH_(2))_(17)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)N-CH_(3)]^(+)Br^(-)`
`[C_(12)CH_(25)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)N-CH_(3)]^(+)Br^(-)`
`[CH_(3)-(CH_(2))_(10)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)N-CH_(3)]^(+)Br^(-)`

ANSWER :B


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