Question

The type of isomerism present in pentaammine nitro chromium $\left(III\right)$ chloride is :

• A. optical
• B. linkage
• C. hydrate
• D. polymerization

Answer 1

The correct option is B linkage

Option (B) is correct.

Linkage isomerism is present in pentaammine nitro chromium (III) chloride due to the presence of $N{O}_2^{-}$.

The isomers are $\left[Co\right(N{H}_3{)}_5\left(N{O}_2\right){]}^{2+}$ and $\left[Co\right(N{H}_3{)}_5\left(ONO\right){]}^{2+}$.