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Which of the following ions will cause h...

Which of the following ions will cause hardness in water ?

A

`Ca^(2+)`

B

`Na^(2+)`

C

`Cl^-`

D

`K^+`

Text Solution

Verified by Experts

The correct Answer is:
A

The hardness of natural water is generally caused by presence of the bicarbonate chlorides and sulphates of calcium and magnesium .
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