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

Chemistry · JEE Advanced · NTA Exams — Surface Chemistry

Among the following, the surfactant that will form micelles in aqueous solution at the lowest molar concentration at ambient conditions, is (2008)

\(\mathrm{CH}_{3}\left(\mathrm{CH}_{2}\right)_{15} \mathrm{~N}^{+}\left(\mathrm{CH}_{3}\right)_{3} \mathrm{Br}^{-}\)
\(\mathrm{CH}_{3}\left(\mathrm{CH}_{2}\right)_{11} \mathrm{OSO}_{3}^{-} \mathrm{Na}^{+}\)
\(\mathrm{CH}_{3}\left(\mathrm{CH}_{2}\right)_{6} \mathrm{COO}^{-} \mathrm{Na}^{+}\)
\(\mathrm{CH}_{3}\left(\mathrm{CH}_{2}\right)_{11} \mathrm{~N}^{+}\left(\mathrm{CH}_{3}\right)_{3} \mathrm{Br}^{-}\)

Answer

(A) CH _ 3 ( CH _ 2 )_ 15 ~N ^ + ( CH _ 3 )_ 3 Br ^ -

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