Question

A micelle formed during the cleansing action of soap is:

• A. a discrete particle of soap
• B. an aggregated particles of soap and dirt
• C. a discrete particle of dust
• D. an aggregated particles of dust and water

Answer 1

The correct option is B an aggregated particles of soap and dirt

When soap is added to water, the polar end of the molecule is attracted to water and get dissolved. The non-polar hydrocarbon end of the soap gets repelled by water.

In the soap water mixture, the polar carboxyl salt end is attracted to the polar water. The non-polar hydrocarbon tails are repelled by the water, and they form an aggregate particle which consists of nonpolar dirt particle with the nonpolar end of the soap which forms a micelle.

Hence, option B is correct.