AP BIOLOGY

Detailed explanation-1: -Soaps cannot be used in acidic conditions because they lose their cleansing effect due to the formation of insoluble long-chain fatty acids. The pH of these fatty acids is less than 7, which is not good for clothes.

Detailed explanation-2: -Soaps used for cleaning purposes are sodium or potassium salts of long-chain fatty acids, e.g. stearic, oleic, and palmitic acids. Hence, Statement 1 is correct. Soaps containing sodium salts are formed by heating fat (i.e. glyceryl ester of fatty acid) with an aqueous sodium hydroxide solution.

Detailed explanation-3: -Soaps are sodium or potassium salts of long chain fatty acids.

Detailed explanation-4: -Soaps cannot be used in acidic condition because they lose their cleansing effect due to formation of insoluble .