A light greenish coloured salt was soluble in water. On passing `H_(2)S` into the solution a black precipiate was obatined which

A light greenish coloured salt was soluble in water. On passing `H_(2)S` into the solution a black precipiate was obatined which dissolve readily in HCl. The metal ion present is
A. `Co^(+2)`
B. `Fe^(2+)`
C. `Ni^(+2)`
D. `Mn^(+2)`

A light greenish coloured salt was soluble in water. On passing `H_(2)S` into the solution a black precipiate was obatined which dissolve readily in H

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