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 occurs when a ligand can bind to the metal ion in two different ways. Here, \( NO_2 \) and \( ONO \) are two forms of the same ligand, leading to linkage isomerism.
Step 2: Thus, the correct answer is option (2).