MHT CET 2023 Chemistry question

Which following regent is used in Etard reaction?

(A)Chromium chloride
(B)Chromyl chlorideCorrect
(C)chromium oxide
(D)Chromic acid

Answer: (B)

Solution

The Etard reaction converts toluene (an aromatic methyl group) to benzaldehyde using chromyl chloride, , in CS (or CCl). The first product is a brown chromium complex, , which on hydrolysis with

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Question ID VK-098016