Which of the following is not arranged in the correct sequence?

We know that as $\mathrm{d}-$subshell possess five orbitals, and it can accommodate maximum$10$ electrons i.e. $2$ in each orbital and also magnetic moment can be given by

$\mathrm{\mu }=\sqrt{\mathrm{n}(\mathrm{n}+2)}$

from the above formula we can observe that as the number of unpaired electrons increases, the magnetic moment also increases.

Hence, the correct order of increasing magnetic moment will be

${\mathrm{d}}^5>{\mathrm{d}}^4>{\mathrm{d}}^3>{\mathrm{d}}^1$