Question

TiO, TiO₂ , ZnSO₄ , MnCl₂ , CrCl₃

Arrange the above metal ions in the increasing order of their magnetic moment.

Answer 1

Ti²⁺ \(\longrightarrow\) d²

µ = \(\sqrt{2(2+2)}\)  =  \(2\sqrt{2}\) = 2.83 BM

Ti⁴⁺ \(\longrightarrow\) d⁰  µ = 0 BM

Mn²⁺ \(\longrightarrow\) d⁵

µ = \(\sqrt{5(5+2)}\)  =  \(\sqrt{35}\) = 5.92 BM

Zn²⁺ \(\longrightarrow\) d¹⁰  µ = 0 BM

Cr³⁺ \(\longrightarrow\) d³

µ = \(\sqrt{3(3+2)}\) = \(\sqrt{15}\) = 3.87 BM

The increasing order of magnetic moment is

TiO₂ = ZnSO₄ < TiO < CrCl₃, MnCl₂