alleryCis and trans isomers of [Co(NH3)4Cl2]⁺ are examples of:
ACoordination isomerism
BOptical isomerism
CGeometric (cis-trans) isomerism
DLinkage isomerism
Answer & Solution
Correct answer: C. Geometric (cis-trans) isomerism
Cis (two Cl⁻ adjacent, 90 degrees) vs trans (two Cl⁻ opposite, 180 degrees).
Geometric isomers have different arrangements in space but same connectivity.
Common for octahedral and square planar complexes with mixed ligands.
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