Home Chemistry D and F - Block Elements HARD Ammonia is a Lewis base. It forms complexes …
Chemistry D and F - Block Elements HARD Single Correct MCQ
Published on: August 12, 2026

Ammonia is a Lewis base. It forms complexes with cations. Which one of the following cations does not form complex with ammonia

A
B
C
D

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Verified by Experts
The correct answer is:
D

because it does not have vacant d -orbitals nor high nuclear charge and it does not belong to transition series.

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