When soap is dissolved in hard water, its cleaning ability comes down. This is due to the formation of:

When soap is dissolved in hard water, its cleaning ability comes down. This is due to the formation of:
  1. C17H35 COO 2 Sn
  2. C17H35COO2Ca
  3. C17H35 COOLi 
  4. C17H35COOH

Solution

Soap is less effective in hard water because it reacts to form the calcium or magnesium salt of the organic acid of the soap. These salts are insoluble and form greyish soap scum, but no cleansing lather. Detergents, on the other hand, forms lather in both hard and soft water.

Asked in: AP EAMCET 2020 (23 Sep Shift 1)

Practice more Basic Principles of Organic Chemistry questions on Aicharya