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Permanent hardness of water cannot be re...

Permanent hardness of water cannot be removed by boiling. Why?

A

Treatment with washing soda

B

Boiling

C

Ion exchange method

D

Calgon's method

Text Solution

Verified by Experts

The correct Answer is:
B
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Explore conceptually related problems

Assertion : Permanent hardness of water can be removed by using washing soda. Reason : Washing soda reacts with soluble calcium and magnesium chlorides and sulphates in hard water to form insoluble carbonates.

By adding which of the following process, permanent hardness of water can be removed.

Give balanced equations to show how - Permanent hardness in water can be removed by addition of washing soda

Give balanced equations to show how - (b) Temporary hardness in water can be removed by boiling

Permanent hardness can be removed by boiling water with washing soda.

Permanent hardness can be removed by adding

Permanent hardness of water is due to the presence of

Only temporary hardness of water is removed by

Give reasons for the following: Hardness in temporary water can be removed by boiling, but hardness in permanent hard water cannot.

Assertion (A) Permanent hardness of water is removed by treatment with washing soda. Reson (R) Washing soda reacts with soluble magnesium and calcium sulphate to from insolube carbonates.