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Q.

The oxidation of toluene to benzaldehyde by chromyl chloride is called

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a

Riemer –Tiemann reaction

b

Cannizzaro’s reaction

c

Wurtz reaction

d

Etard reaction

answer is A.

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Detailed Solution

The oxidation of toluene (C6H5CH3) with chromyl chloride (CrO2Cl2) in CCl4 or CS2 to -give benzaldehyde is called Etard reaction. In this reaction, the chromyl chloride first forms a brown complex. which is separated and then decomposed with H2O to give benzaldehyde (C6H5CHO).

Etard reaction in the following is AOxidation of toluene class 12 chemistry CBSE

 

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The oxidation of toluene to benzaldehyde by chromyl chloride is called