Ammonia/ammonium ion gives yellow precipitate with:

Options

A. `H_(2)PtCl_(6)`
B. `HgCl_(2)`
C. `Na_(3)[Co(NO_(2))_(6)]`
D. (A) and ( C) both

Answer

D

Explanation

`NH_(4)^(+)+[PtCl_(6)]^(2-)to(NH_(4))_(2)[PtCl_(6)]darr` (yellow).
`[Co(NO_(2))_(6)]^(3-)+3NH_(4)^(+)to(NH_(4))_(3)[Co(NO_(2))_(6)]darr` (yellow)