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 prcipitate with basic potassium ferrocyanide. The cation is :

Options

A. `Mn^(2+)`
B. `Zn^(2+)`
C. `Ni^(2+)`
D. `Co^(2+)`

Answer

B