Question

Which element from following forms colourless compounds in +2 oxidation state?

विकल्प

• Zn (Z = 30)

• Cu (Z = 29)

• Mn (Z = 25)

• Co (Z = 27)

Answer 1

Zn (Z = 30)

Explanation:

\[\ce{Zn^{2+} -> 3d^10}\] (No unpaired d-electron)

∴ Zn forms colourless compounds in +2 oxidation state.