Question

The pair having the same magnetic moment is:

[At. No $\therefore$ Cr =24, Mn =25, Fe =26, Co =27]

• A.
• B.
• C.
• D.

Answer 1

The correct option is A

Identical the number of unpaired electrons higher the magnetic moment

Metal ion Unpaired electrons

$\left[Cr\right(H_{2}O{)}_6{]}^{2+}C{r}^{2+}$ 4

$\left[Fe\right(H_{2}O{)}_6{]}^{2+}F{e}^{2+}$ 4

$\therefore \left[Cr\right(H_{2}O{)}_6{]}^{2+}and\left[Fe\right(H_{2}O{)}_6{]}^{2+}$ have identical magnetic moment.