`Mg^(2+)` can be detected and esitimated in hard water by titrating with `EDTA` at `pH=10` using `NH_(4)OH+NH_(4)Cl` buffer. The

`Mg^(2+)` can be detected and esitimated in hard water by titrating with `EDTA` at `pH=10` using `NH_(4)OH+NH_(4)Cl` buffer. The end point is given by the apearance of blue colour. The indicator used is
A. Solochrome black
B. Eriochrome black `T`
C. Eosin
D. Bromophenol

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`Mg^(2+)` can be detected and esitimated in hard water by titrating with `EDTA` at `pH=10` using `NH_(4)OH+NH_(4)Cl` buffer. The end point is given by

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