s-Block ElementsHard

Question

In water :

Options

A.temporary hardness is due to the bicarbonates of Ca2+ and Mg2+
B.permanent hardness is due to chlorides and sulphates of Ca2+ and Mg2+
C.hardness can be removed by adding phosphates.
D.none is correct.

Solution

(A), (B) and (C) are correct statements.

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