Question

Assertion: The complexes, [Co(pn)2Cl₂]⁺ and [Co(tn)₂Cl₂]⁺ are ligand isomers.

Reason: The ligand 1,2-diaminopropane can exist both as 1,2-diaminopropane (pn) and 1,3-diaminopropane (tn).

Options

• If both Assertion and Reason are CORRECT and Reason is the CORRECT explanation of the Assertion.

• If both Assertion and Reason are CORRECT but Reason is not the CORRECT explanation of the Assertion.

• If Assertion is CORRECT but Reason is INCORRECT.

• If Assertion is INCORRECT but Reason is CORRECT.

Answer 1

If both Assertion and Reason are CORRECT and Reason is the CORRECT explanation of the Assertion.

Explanation:

The complexes [Co(pn)₂Cl₂]⁺ and [Co(tn)₂Cl₂]⁺ are ligand isomers because pn (1,2-diaminopropane) and tn (1,3-diaminopropane) are different ligands, leading to different coordination arrangements.

1,2-diaminopropane (pn) and 1,3-diaminopropane (tn) are structural isomers, with the amino groups positioned differently, which explains the ligand isomerism in the complexes.