Question

A light green salt soluble in water gives black precipitate on passing `H_(2)S` which dissolves readily in HCI .The metal ion present is
A. `Co^(2+)`
B. `Fe^(2+)`
C. `Ni^(2+)`
D. `Ag^(o+)`

Answer 1

Correct Answer - b
`FeS` is soluble in HCI, Also `Fe^(2+)` salts are green