Solveeit Logo

Question

Question: The pair in which both species have same magnetic moment is –...

The pair in which both species have same magnetic moment is –

A

[Cr(H2O)6]2+ , [CoCl4]2–

B

[Cr(H2O)6]2+ , [Fe(H2O)6]2+

C

[Mn(H2O)6]2+ , [Cr(H­2O)6]2+

D

[CoCl4]2– , [Fe(H2O)6]2+

Answer

Cr(H<sub>2</sub>O)<sub>6</sub>Cr(H<sub>2</sub>O)<sub>6</sub>2+ , Fe(H<sub>2</sub>O)<sub>6</sub>Fe(H<sub>2</sub>O)<sub>6</sub>2+

Explanation

Solution

[Cr(H2O)6]2+ have Cr2+

Cr2+ = 3d4 4s0 (four unpaired electrons)

Fe2+ = 3d6 4s0 (in presence of weak ligand also have four unpaired electrons)