Standard Books Chemistry Ligands MCQ Question with Solution

Ammonia acts as a very good ligand but ammonium ion does not form complexes because

A

NH₃ is a gas while NH₄⁺ is in liquid form

B

NH₃ undergoes sp³ hybridisation while NH₄⁺ undergoes sp³d hybridization

C

NH₄⁺ ion does not have any lone pair of electrons

D

NH₄⁺ ion has one unpaired electron while NH₃ has two unpaired electrons.

Option C

NH₄⁺ does not have any lone pair of electrons, which is necessary for forming coordinate bonds in complexes, unlike NH₃ which has a lone pair.

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STANDARD Chemistry Ligands MCQ Question