MHT CET202313 May 2023Morning ShiftChemistryAldehydes and KetonesActual

Which following reagent is used in Etard reaction?

Options

AChromium chloride
BChromyl chloride
CChromium oxide
DChromic acid

Correct answer

B. Chromyl chloride

Step-by-step solution

Methyl group in methyl benzene (or methyl arene) is oxidized by oxidizing agent chromyl chlơride in carbon disulfide as solvent, to form a chromium complex, from which the corresponding benzaldehyde is obtained on acid hydrolysis. This reaction is known as Etard reaction.

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