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Assertion : Permanent hardness of water ...

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

A

Both assertion and reason are true and reason is the correct explanation of assertion.

B

Both assertion and reason are true but reason is not the correct explanation of assertion.

C

Assertion is true but reason is false

D

Both assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
A
`Ca^(2+) + Na_2 CO_3 to CaCO_3 darr + 2Na^+`
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