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Soaps

Soft soaps ar...

Question

Soft soaps are:

A

sodium salts of fatty acids

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B

potassium salts of fatty acids, containing excess of free alkali

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C

potassium salts of fatty acids, containing no free alkali

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D

calcium salts of fatty acids

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Solution

The correct option is C potassium salts of fatty acids, containing no free alkali
Potassium salts of fatty acids, containing no free alkali, are called soft soaps.

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Similar questions

Q. Soaps are sodium or potassium salts of long chain fatty acids.

Q. Soaps are ______ and ______ salts of long chain fatty acids.

Q. State true or false.

Soft soaps are potassium salts of higher fatty acids.

Q. Hard soap is a salt whereas soft soap is a salt of fatty acids.

Q. Consider the following two statements about soap and detergent –
(i) Soaps and detergents are salts of long chain fatty acids.
(ii) Both soap and detergent precipitate scum in hard water.
(iii) Soap is sodium or potassium salt of fatty acids whereas detergents are ammoniuma nd sulphonate salts of fatty acids.
Which of the above statements is (are) true?

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