A) benzoicacid
B) benzaldehyde
C) chlorotoluene
D) benzyl chloride
Correct Answer: B
Solution :
Benzaldehyde can be prepared from toluene by its oxidation with chromyi chloride \[(Cr{{O}_{2}}C{{l}_{2}})\] in \[CC{{l}_{4}}.\] The reaction is called Etard's reaction.
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