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Among the following surfactant molecules, the surfactant that forms micelles in aqueous solution at the lower CMC at ambient condition is

Options

  1. AC H 3 C H 2 15 N + C H 3 3 B r -
  2. BC H 3 C H 2 11 O S O 3 - N a +
  3. CC H 3 C H 2 6 C O O - N a +
  4. DC H 3 C H 2 11 N + C H 3 3 B r -

Correct answer

A. C H 3 C H 2 15 N + C H 3 3 B r -

Step-by-step solution

More is the hydrophobic character in surfactant molecule, lesser is CMC in aqueous solution. Hydrophobic   character   ∝   length   of   carbon   chain

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