While preparing soap a small quantity of common salt is generally added to the reaction mixture of vegetab

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Q.
While preparing soap a small quantity of common salt is generally added to the reaction mixture of vegetable oil and sodium hydroxide. Which one of the following may be the purpose of adding common salt

1 To reduce the basic nature of the soap

2 To make the soap neutral

3 To enhance the cleansing power of the soap

4 To favour the precipitation of the soap

Ans.
(4)

A small quantity of common salt is generally added to the reaction mixture of vegetable oil and sodium hydroxide to favour the precipitation of the soap because by adding salt to the suspension mixture, soap is precipitated as solid. This process is called salting out of soap

Solution

Q.
While preparing soap a small quantity of common salt is generally added to the reaction mixture of vegetable oil and sodium hydroxide. Which one of the following may be the purpose of adding common salt

1 To reduce the basic nature of the soap

2 To make the soap neutral

3 To enhance the cleansing power of the soap

4 To favour the precipitation of the soap

Ans.
(4)

A small quantity of common salt is generally added to the reaction mixture of vegetable oil and sodium hydroxide to favour the precipitation of the soap because by adding salt to the suspension mixture, soap is precipitated as solid. This process is called salting out of soap

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Solution

Q. While preparing soap a small quantity of common salt is generally added to the reaction mixture of vegetable oil and sodium hydroxide. Which one of the following may be the purpose of adding common salt

1 To reduce the basic nature of the soap

2 To make the soap neutral

3 To enhance the cleansing power of the soap

4 To favour the precipitation of the soap

Ans. (4) A small quantity of common salt is generally added to the reaction mixture of vegetable oil and sodium hydroxide to favour the precipitation of the soap because by adding salt to the suspension mixture, soap is precipitated as solid. This process is called salting out of soap

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Q.
While preparing soap a small quantity of common salt is generally added to the reaction mixture of vegetable oil and sodium hydroxide. Which one of the following may be the purpose of adding common salt

Ans.
(4)

A small quantity of common salt is generally added to the reaction mixture of vegetable oil and sodium hydroxide to favour the precipitation of the soap because by adding salt to the suspension mixture, soap is precipitated as solid. This process is called salting out of soap