Easy MCQ +4 / -1 PYQ · JEE Mains 2021

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 CH<sub>3</sub>(CH<sub>2</sub>)<sub>16</sub> - group pointing towards the centre of sphere. Correct answer
  2. B It forms non-spherical micelles with -COO<sup>$-$</sup> group pointing outwards on the surface.
  3. C It forms spherical micelles with CH<sub>3</sub>(CH<sub>2</sub>)<sub>16</sub> - group pointing outwards on the surface of sphere
  4. D It forms non-spherical micelles with CH<sub>3</sub>(CH<sub>2</sub>)<sub>16</sub> - group pointing towards the centre.

Solution

Forms spherical micelles with CH<sub>3</sub>(CH<sub>2</sub>)<sub>16</sub> group pointing towards the centre of sphere.

About this question

Subject: Chemistry · Chapter: Chemistry in Everyday Life · Topic: Drugs and Medicines

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