Which pair of ions have same magnetic moment?

Which pair of ions have same magnetic moment?
  1. $\mathrm{Mn}^{2+}, \mathrm{Fe}^{2+}$
  2. $\mathrm{Ti}^{2+}, \mathrm{Co}^{2+}$
  3. $\mathrm{Cr}^{3+}, \mathrm{Co}^{2+}$
  4. $\mathrm{Cr}^{2+}, \mathrm{Co}^{2+}$

Solution

\(\mathrm{Cr}^{3+}\) magnetic moment as 3.87 \(\mathrm{Co}(+2)\) magnetic moment as 3.87 ~

Asked in: JEE-TOPICTESTS-CHEMISTRY

Practice more THE D AND F BLOCK ELEMENTS questions on Aicharya