Question

Soaps are-

• A. Alkyl benzene sulphonates
• B. Sodium salts of long chain carboxylic acids.
• C. Glycerides
• D. Glyceric ester of higher fatty acids.

Answer 1

The correct option is B Sodium salts of long chain carboxylic acids.

Soaps are sodium salts of long chain fatty acids e.g. sodium oleate $C_{17}{H}_{33}COON{a}^{+}$ similarly, sodium stearate is a soap of a saturated Fatty acid $C_{17}{H}_{35}COOH$ soaps form micelle in which there is one hydrophobic part and another is hydrophilic part.