Q. The existence of two different coloured complexes with the composition of [Co(NH₃)₄Cl₂]⁺ is due to

A) Ionization isomerism
B) Linkage isomerism
C) Geometrical isomerism
D) Coordination isomerism
Explanation

[Solution from source] [Co(NH₃)₄Cl₂]⁺ is octahedral MA₄B₂, which exists as cis (violet) and trans (green) isomers: geometrical isomerism. Ionisation and linkage isomerism need different ions or an ambidentate ligand, which are absent here. Answer (3).

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.

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