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Soft Water

Saponificatio...

Question

Saponification is –

A

A process of preparing soap solution by dissolving soap in water

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B

A reaction of ester of fatty acid with aqueous sodium or potassium hydroxide

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C

A process of precipitating soap from colloidal solution of soap and glycerol

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D

An industrial term used in laundry industry for dry cleaning.

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Solution

The correct option is B A reaction of ester of fatty acid with aqueous sodium or potassium hydroxide
Saponification is a reaction of ester of fatty acid with aqueous sodium or potassium hydroxide.

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Reason: Hydrolysis of esters of long chain fatty acids by alkali produces soap in colloidal form.

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(ii) Both soap and detergent precipitate scum in hard water.
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