JEE Main 2021 · 25 July · morning · Single correct · +4 / −1

Sodium stearate CH₃(CH₂)₁₆COO⁻Na⁺ is an anionic surfactant which forms micelles in oil.
Choose the correct statement for it from the following :

  1. (a) It forms spherical micelles with CH₃(CH₂)₁₆ - group pointing towards the centre of sphere.
  2. (b) It forms non-spherical micelles with -COO⁻ group pointing outwards on the surface.
  3. (c) It forms spherical micelles with CH₃(CH₂)₁₆ - group pointing outwards on the surface of sphere
  4. (d) It forms non-spherical micelles with CH₃(CH₂)₁₆ - group pointing towards the centre.
Answer and solution

Answer (a) It forms spherical micelles with CH₃(CH₂)₁₆ - group pointing towards the…

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Asked about 80 times in JEE Main since 2020. This question is from 2021.