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NEET2023Chemistry-Coordination Compounds

NEET 2023 Chemistry Stability of Complexes MCQ Question

Type: MCQ-conceptual-Medium-Class 12

Which complex compound is most stable?

A

[Co(NH₃)₅(NO₃)₃]

B

[CoCl₂(en)₂]NO₃

C

[Co(NH₃)₆]₂(SO₄)₃

D

Co(NH₃)₄(H₂O)Br₂

Correct Answer

Option B

Detailed Explanation

The stability of a complex is often determined by the chelate effect. Co(NH3)63 is more stable due to the presence of strong field ligands like NH3.

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