1.

Hg_(2)^(2+) when reacts with H_(2)S, black ppt. (A) formed which when reacts with Na_(2)S followed by filtration leaving behind black ppt. (B). The filitrate with H^(+) gives black ppt. (C). A, B and C are:

Answer»

`Hg_(2)S,HG,HGS`
`Hg+HgS,HgS,Hg`
`Hg+HgS,Hg,HgS`
`Hg_(2)S,HgS,Hg`

ANSWER :C


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