1.

An orange precipitate in the second group is given byA. `Sn^(2+)`B. `Sb^(3+)`C. `Hg^(2+)`D. `As^(3+)`

Answer» Correct Answer - B
`Sb^(3+)` with `H_(2)S` in presence of dil. HCl gives `Sb_(2)S_(3)` ( orange ppt)
while `Hg^(2+)` gives HgS (black ppt)
`As^(3+)` gives `As_(2)S_(3)`(yellow ppt)
`Sn^(2+)` gives SnS ( brown ppt)


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