Question

How will you convert $4$-nitrotoulene to $2$-bromobenzoic acid?

Answer 1

The catalysts used in the conversion are Sn, $H_{3}P{O}_2$ and $KMn{O}_4$. The $KMn{O}_4$ is strong oxidizing agent and is used to oxidize $-C{H}_3$ to $-COOH$