Question

Bathing soap are usually hard and free from the unused alkali, while washing soap are usually soft and also contains some residual alkali.

If true enter 1, if false enter 0.

• A. 0

Answer 1

The correct option is A 0
Depending on the nature of the alkali used in their production, soaps have distinct properties. Washing soaps are hard, sodium salts of fatty acids and they contains residual alkali. Whereas, bathing soaps are soft, potassium salts of fatty acids and they are free from residual alkali.