1.

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

Answer»

both assertion and REASON are TRUE and reason is the correct explanation of assertion.
Both assertion and reason are true but reasonis not the correct explanation of assertion.
Assertion is true but reason is false
both assertion and reason are false

ANSWER :A::B::C::D


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