Among the following, which surfactant will form micelles in aqueous solution at the lowest molar concentration at ambient conditions?
A. `CH_(3)(CH_(2))_(15)N^(o+)(CH_(3))_(3)Br^(Θ)`
B. `CH_(3)(CH_(2))_(11)OSO_(3)^(Θ)Na^(o+)`
C. `CH_(3)(CH_(2))_(6)COO^(Θ)Na^(o+)`
D. `CH_(3)(CH_(12))_(11)N^(o+)(CH_(3))_(3)Br^(Θ)`
A. `CH_(3)(CH_(2))_(15)N^(o+)(CH_(3))_(3)Br^(Θ)`
B. `CH_(3)(CH_(2))_(11)OSO_(3)^(Θ)Na^(o+)`
C. `CH_(3)(CH_(2))_(6)COO^(Θ)Na^(o+)`
D. `CH_(3)(CH_(12))_(11)N^(o+)(CH_(3))_(3)Br^(Θ)`
Correct Answer – A
Among the given options, the surfactant that will form micells in aqueous solution at the lowest molar concentration at ambient conditions is
`CH_(3)(CH_(2))_(15)No^(o+)(CH_(3))_(3)Br^(ɵ)` .