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

Options

  1. ACH ₃ ( CH ₂ )₁₅ ~N ⁺ ( CH ₃ )₃ Br ⁻
  2. BCH ₃ ( CH ₂ )₁₁ OSO ₃⁻ Na ⁺
  3. CCH ₃ ( CH ₂ )₆ COO ⁻ Na ⁺
  4. DCH ₃ ( CH ₂ )₁₁ ~N ⁺ ( CH ₃ )₃ Br ⁻

Correct answer

A. CH ₃ ( CH ₂ )₁₅ ~N ⁺ ( CH ₃ )₃ Br ⁻

Step-by-step solution

Sodium Hexadecyl trimethylammonium bromide (CTAB) dodecylsulphate (SDS) CMC ( mm )>-10 1

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