Which of the following cation does not give red colour precipitate/solution with dimethylglyoxime `(DMG)` in alkaline solution?

Options

A. `Zn^(+2)`
B. `Ni^(+2)`
C. `Fe^(2+)`
D. both (A) and ( C)

Answer

A

Explanation

`Ni^(2+)` and `Fe^(2+)` both on reaction with alkaline solution of dimethyl glyoxime give red precipitate and red solution respectively but not zinc.