Among the following , the surfactant that will form micelles in aqueous solution at the lowest molar concentration at amibemt conditions, is :

Options

A. `CH_(3)(CH_(2))_(15)N^(+)(CH_(3))_(3)Br^(-)`
B. `CH_(3)(CH_(2))_(11)OSO_(3)^(-)Na^(+)`
C. `CH_(3)(CH_(2))_(6)COO^(-)Na^(+)`
D. `CH_(3)(CH_(2))_(11)N^(+)(CH_(3))_(3)Br^(-)`

Answer

A

Explanation

The surfactant cetyl trimethylammonium bromide `CH_(3)(CH_(2))_(15)N^(+)(CH_(3))_(3)Br^(-)` with maximum molecular mass will form micelle at the lowest CMC.