Write the reaction involved in Etard reaction.
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Solution and Explanation
Reaction \[ C_6H_5CH_3 \xrightarrow[\text{CS}_2]{CrO_2Cl_2} \text{Etard Complex} \xrightarrow{H_3O^+} C_6H_5CHO \]
Explanation Toluene undergoes controlled oxidation to benzaldehyde without further oxidation to benzoic acid. This selective oxidation is known as the Etard reaction.
Final Answer \[ \boxed{ C_6H_5CH_3 \xrightarrow[\text{CS}_2]{CrO_2Cl_2} C_6H_5CHO } \]
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