Question

|⭕+QUESTION+⭕|

Explain on the basis of valence bond theory that [NiCl4]^-2 ion with square planar structure is diamagnetic and the [NiCl4]^-2 ion with tetrahedral geometry is paramagnetic.​

Answer 1

Explanation:

It is diamagnetic in nature due to the unpaired electron. In case of [NiCl4] 2−, Cl− ion is a weak field lig.and.

Answer 2

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Both the given complex are tetrahedral but they have different magnetic characters. This is due to the different field strengths of the ligands. Chlorine is a weak field ligd and thus, pairing of electrons does not take place in compl ex.

Paramagnetic behavior depends upon the number of unpaired electrons. Thus, it shows paramagnetic nature.

Therefore, it will cause pairing in orbital . Thus, due to the presence of strong field lnd there are no unpaired electron