Question

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

Options

• linkage isomerism

• geometrical isomerism

• coordination isomerism

• ionisation isomerism

Answer 1

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

Explanation:

In the complex [Co(NH₃)₄Cl₂]⁺, the two chloride ions can be arranged differently: either adjacent to each other (cis) or opposite each other (trans), leading to two distinct isomers with different colors.