Question

The main difference between bathing and washing soap is

• A. bathing soaps are potassium salts of fatty acids while washing soaps are sodium salts of fatty acids
• B. bathing soaps are sodium salts of fatty acids while washing soaps are potassium salts of fatty acids
• C. bathing soaps are cationic in nature while washing soaps are anionic
• D. bathing soaps are calcium salts of fatty acids while washing soaps are magnesium salts of fatty acids

Answer 1

Answer: (A)

Bathing soap are potassium salts of long chain fatty acids. They are usually soft and are also free from unused alkali.
Washing soaps, on the other hand, are sodium salts of long chain fatty acids. They are usually hard and also contain some residual alkali.