A solution containing a group-IV cation gives a precipitate on passing, `H_(2)S`. A solution of this precipitate in dil. `HCl` produces a white precipitate with NaOH solution and bluish-white precipitate with basic potassium ferrocyanide. The cation is :
A
`Mn^(2+)`
B
`Zn^(2+)`
C
`Ni^(2+)`
D
`Co^(2+)`
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The correct Answer is:
B
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