Question

The complex ions \([Co(NH_3)_5(NO_2)]^{2+\) and \([Co(NH_3)_5(ONO)]^{2+}\) are called}

• A. Ionization isomers
• B. Linkage isomers
• C. Co-ordination isomers
• D. Geometrical isomers

Hint:

In linkage isomerism, a ligand can attach to a metal through different atoms, resulting in isomers with the same formula but different structures.

Answer 1

The Correct Option is B

Linkage isomerism is observed when a ligand can coordinate to a metal ion through different donor atoms. For instance, \( NO_2 \) and \( ONO \) represent two binding modes of the same ligand, resulting in linkage isomerism.
Step 2: Consequently, option (2) is the correct choice.