Which of the following mixtures cann be separated by using excess `NH_(3) ` solution?

Options

A. `Bi^(3+)(aq.) ane Al^(3+)(aq.)`
B. `Al^(3+)(aq.) and Zn^(2+)(aq.)`
C. `Hg^(2+)(aq.) and Pb^(2+)(aq.)`
D. `Cu^(2+)(aq.) and Cd^(2+)(aq.)`

Answer

B

Explanation