In which one of the case the chemical reaction given in Column I does not match with the name of the reaction given in Column II? array |l|l|l| S.No. & Column I - Reactions & Column II - Name of reaction. A & C ₆ H ₅ CHO + Conc. NaOH, heat C ₆ H ₅ CH ₂ OH + C ₆ H ₅ COONa & Cannizzaro's reaction B & C ₆ H ₅ CH ₃+ (i) CrO ₂ Cl ₂ / CS ₂ (ii) H ₃ O ⁺ C ₆ H ₅ CHO & Etard reaction. C & C ₆ H ₆+ CO / HCl (anh. AlCl ₃ C ₆ H

Step-by-step solution

Reaction A is the Cannizzaro reaction, which involves the self-oxidation and reduction of an aldehyde lacking -hydrogens in the presence of a concentrated base. This is correctly matched. Reaction B is the Etard reaction, which uses chromyl chloride ( CrO ₂ Cl ₂ ) to oxidize toluene to benzaldehyde. This is correctly matched. Reaction C is the Gattermann-Koch reaction, which involves the formylation of benzene using CO and HCl in the presence of anhydrous AlCl ₃ to produce benzaldehyde. The name given in the table