Among the following, the surfactant that will form micelles in aqueous solution at the lowest molar…

Among the following, the surfactant that will form micelles in aqueous solution at the lowest molar concentration at ambient conditions is
  1. $\mathrm{CH}_3\left(\mathrm{CH}_2\right)_{15} \mathrm{~N}^{+}\left(\mathrm{CH}_3\right)_3 \mathrm{Br}^{-}$
  2. $\mathrm{CH}_3\left(\mathrm{CH}_2\right)_{11} \mathrm{OSO}_3^{-} \mathrm{Na}^{+}$
  3. $\mathrm{CH}_3\left(\mathrm{CH}_2\right)_6 \mathrm{COO}^{-} \mathrm{Na}^{+}$
  4. $\mathrm{CH}_3\left(\mathrm{CH}_2\right)_{11} \mathrm{~N}^{+}\left(\mathrm{CH}_3\right)_3 \mathrm{Br}^{-}$

Solution

Sodium Hexadecyl trimethylammonium bromide (CTAB) dodecylsulphate (SDS) CMC $(\mathrm{mm})>-10$ 1

Asked in: JEE Advanced 2008 (Paper 2)

Practice more Surface Chemistry questions on Aicharya