Question

The metal which does not form coloured compounds is

• A. Cr
• B. Fe
• C. Zn
• D. Mn

Answer 1

Answer: (C)

Zn

Answer 2

$Zn^{2+}$ ion has $[Ar]^{18} \, 3d^{10}$ configuration with no unpaired electrons. As such $Zn^{2+}$ is white.' Thus zinc does not form coloured compounds