JEE Advanced 2008 Chemistry question

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

(A)\mathrm{CH_3(CH_2)_{15}N^+(CH_3)_3Br^-}Correct
(B)\mathrm{CH_3(CH_2)_{11}OSO_3^-Na^+}
(C)
(D)\mathrm{CH_3(CH_2)_{11}N^+(CH_3)_3Br^-}

Answer: (A)

Solution

The critical micelle concentration falls as the hydrophobic tail gets longer, because a longer chain is driven more strongly out of water into the micelle core. The

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-037656