JEE Main202225 Jul 2022Morning ShiftChemistryAldehydes and KetonesActual

Which one of the following reactions does not represent correct combination of substrate and product under the given conditions?

Correct answer

Step-by-step solution

Cyanide on reduction with DIBAL-H gives aldehyde. Acid halide with rosenmund reduction reaction gives aldehyde. So, all these reaction are correct except benzyl alcohol with oxidation with strong oxidising agents sodium dichromate will give carboxylic acid not the aldehyde.

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