Soap forms insoluble precipitates with calcium and magnesium ions present in hard water.

True

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False

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Solution

The correct option is A
True

Calcium $(Ca)$ and magnesium $(Mg)$ ions present in hard water form insoluble precipitates with fatty acids in the soap by replacing sodium ions present in it. All the insoluble compounds that are formed after the reaction of soap with hard water is called soap scum.

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Similar questions

Soap forms insoluble precipitates with calcium and magnesium ions present in hard water. True or False?

Q. Assertion (A): Hard water forms sticky precipitate with soap.
Reason (R): Hard water contains calcium and magnesium ions

Q. Assertion :Scum is formed when hard water is treated with soap. Reason: Hard water contains calcium and magnesium ions. When soap comes in contact with hard water, these ions form calcium and magnesium salts of fatty acids which are insoluble in water. These calcium or magnesium salts precipitate out in the form of scum.

Q. Assertion(A): Hard water gives lather with soap easily.

Reason(R): Salts of calcium and magnesium react with soap to form insoluble salts.

Choose the correct option.
Assertion (A): Hard water gives lather with soap easily.
Reason (R): Salts of sodium and magnesium present in hard water react with soap to form insoluble salts.

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Soap forms insoluble precipitates with calcium and magnesium ions present in hard water.

The correct option is A True Calcium (Ca) and magnesium (Mg) ions present in hard water form insoluble precipitates with fatty acids in the soap by replacing sodium ions present in it. All the insoluble compounds that are formed after the reaction of soap with hard water is called soap scum.

The correct option is A
True

Calcium $(Ca)$ and magnesium $(Mg)$ ions present in hard water form insoluble precipitates with fatty acids in the soap by replacing sodium ions present in it. All the insoluble compounds that are formed after the reaction of soap with hard water is called soap scum.