AP EAMCET20228 Jul 2022Evening ShiftChemistryHydrocarbonsActual

Identify the correct reagent for Etard reaction.

Options

ACrO ₂ Cl ₂, H ₃ O ⁺
BPd - BaSO ₄
CCrO ₃, H ₃ O ⁺
DSnCl ₂, HCl

Correct answer

A. CrO ₂ Cl ₂, H ₃ O ⁺

Step-by-step solution

The corfect reagent for Etard reaction is CrO ₂ Cl ₂, H ₃ O ⁺ . In case, the side chain contains a group higher than - CH ₃ group, the end carbon atom of the chain is oxidised by CrO ₂ Cl ₂ to - CHO group. e.g.

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