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The degree of hardness of water is usual...

The degree of hardness of water is usually expressed in terms of

A

ppm of Ca`CO_3` actually present in water

B

g/L of Ca`CO_3` and Mg`CO_3` present

C

ppm by weight of Ca`CO_3` irrespective of whether it is actually present

D

ppm by weight of `MgSO_4`

Text Solution

Verified by Experts

The correct Answer is:
C
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