Question

Which of the following pair will have equal magnetic moment value in BM?

विकल्प

• Cr³⁺ and Mn²⁺

• Mn²⁺ and Fe³⁺

• V²⁺ and Sc³⁺

• Ti²⁺ and V²⁺

Answer 1

Mn²⁺ and Fe³⁺

Explanation:

If the ions have the same number of unpaired electrons, their magnetic moments will be equal.

Mn²⁺: [Ar]3d⁵

∴ 5 unpaired electrons

Fe³⁺: [Ar]3d⁵

∴ unpaired electrons