Question

Assertion: Linkage isomerism arises in coordination compounds containing ambidentate ligand.

Reason: Ambidentate ligand has two different donor atoms.

• A. Assertion is false, reason is true.
  
• B. Assertion is true, reason is false.
  
• C. Assertion and reason both are true, reason is correct explanation of assertion.
  
• D. Assertion and reason both are true but reason is not the correct explanation of assertion.

Answer 1

The correct option is C Assertion and reason both are true, reason is correct explanation of assertion.


Analysing the assertion

Linkage isomerism is the existence of coordination compounds that have the same chemical formula but differ in the connectivity of the ligand to the metal.

Linkage isomerism arises in coordination compounds containing ambidentate ligands because ambidentate ligands have two different donor atoms.

So, the assertion is a correct statement.

Analysing the reason

Ambidentate ligand is a type of ligand that tends to bind the central atom via two different donor atoms,which lead to the formation of linkage isomers.

Examples: thiocynate ion $(SC{N}^{-}$) can bind to the central metal atom or ion with either nitrogen or sulfur atom.

So, the reason is also a correct statement.

Hence, both the assertion and the reason are correct statements, and reason is the correct explanation for the assertion.

So, option (A) is the correct answer.