Which pair of compounds is expected to show similar colour in aqueous medium?

Options

A. `FeCl_(2)and CuCl_(2)`
B. `VOCl_(2) and CuCl_(2)`
C. `VOCl_(2) and FeCl_(2)`
D. `FeCl_(2) and MnCl_(2)`

Answer

B

Explanation

Colour of transition metal ion salt is due to `d-d` transition of unpaired electrons of d-orbital. Metal ion salt having similar number of unpaired electron in d-orbitals shows similar colour in aqueous medium

Number of unpaired electrons = 1