Which of the following pairs of cations can be separated from each other by passing `H_(2)S` in dil. HCl medium?

Options

A. `Sn^(2+), Hg^(2+)`
B. `Pb^(2+), Mn^(2+)`
C. `Sb^(3+), Cu^(2+)`
D. `Zn^(2+), Cu^(2+)`

Answer

B, D