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Hardness of water is estimated by simple...

Hardness of water is estimated by simple complex formation titration Complex formed by cation in hard water during estimation of hardness is .

A

`Na_(2)[Ca(PO_(3))_(6)]`

B

`Na_(2)[Mg(EDTA)]`

C

`[Ca(So_(4))_(2)]^(2-)`

D

`Na[Pb(EDTA)]`

Text Solution

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The correct Answer is:
B
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