Mark the reaction among the following that does not give benzoic acid as the major product:

The question tests the knowledge of oxidation reactions yielding carboxylic acids versus aldehydes.

1. Haloform Reaction: Acetophenone ($C_6H_5COCH_3$) contains a methyl ketone group. Treatment with $NaOBr$ (sodium hypobromite) followed by acidification oxidises it to Benzoic acid ($C_6H_5COOH$).
2. Side-Chain Oxidation: Alkylbenzenes like Toluene ($C_6H_5CH_3$) having at least one benzylic hydrogen are oxidised by strong oxidising agents like alkaline $KMnO_4$ to Benzoic acid.
3. Hydrolysis of Nitriles: Benzonitrile ($C_6H_5CN$) upon complete acid hydrolysis ($H_3O^+$) yields Benzoic acid.
4. Mild Oxidation: PCC (Pyridinium Chlorochromate) is a mild oxidising agent used to convert primary alcohols to aldehydes. It prevents further oxidation to carboxylic acids. Therefore, the reaction of Benzyl alcohol ($C_6H_5CH_2OH$) with PCC yields Benzaldehyde ($C_6H_5CHO$), not benzoic acid.