Question

Which of the following pair is expected to exhibit same colour in solution?

• A. $VOCI_2; FeCI_2$
• B. $CuCI_2;VOCI_2$
• C. $MnCI_2;FeCI_2$
• D. $FeCI_2;CuCI_2$

Answer 1

Answer: (B)

$CuCI_2;VOCI_2$

Answer 2

In CuCl$_2$, Cu$_2$ has $d^9$- configuration, exhibit d-d transition and show colour. Similarly in VOCl$_2, V^{4+} \, has \, d^1$ configuration, car exhibit d-d transition and show colour.