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

Mg^(2+) can be detected and esitimated in hard water by titrating with

1.	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
Answer» Solochromeblack Eriochrome BLACK `T` Eosin Bromophenol Solution : `underset("Wine red")(Mg-In)+ EDTA OVERSET(NH_(4)OH+NH_(4)CI)underset((pH=10))rarrMg-EDTA+underset("BLUE")(In)`