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Which of the following grouups of ioins ...

Which of the following grouups of ioins makes the water hard ?

A

Sodium and bicarbonate

B

Magnesium and chloride

C

Potassium and sulphate

D

Ammonium and chloride

Text Solution

Verified by Experts

The correct Answer is:
B
Temporary hardness is due to the presence of bicarbonates of calcium and magnesium and permanent hardness is due to the sulphates or chlorides of both of calcium and magnesium.
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