Which of the following reactions does not pro | vedclass

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(C) . Gattermann-Koch reaction: $C_6H_6 + CO + HCl \xrightarrow{	ext{Anhy. } AlCl_3} C_6H_5CHO$ (Produces benzaldehyde).$B$. Etard reaction: $C_6H_5C

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$C_6H_5CH_3 \xrightarrow{KMnO_4 + KOH} C_6H_5COOK$

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(C) . Gattermann-Koch reaction: $C_6H_6 + CO + HCl \xrightarrow{	ext{Anhy. } AlCl_3} C_6H_5CHO$ (Produces benzaldehyde).$B$. Etard reaction: $C_6H_5CH_3 + CrO_2Cl_2 \xrightarrow{CS_2} C_6H_5CHO$ (Produces benzaldehyde).$C$. Oxidation of toluene with $KMnO_4 + KOH$ yields potassium benzoate $(C_6H_5COOK)$,which upon acidification gives benzoic acid $(C_6H_5COOH)$,not benzaldehyde.$D$. Rosenmund reduction: $C_6H_5COCl + H_2 \xrightarrow{Pd-BaSO_4} C_6H_5CHO$ (Produces benzaldehyde).Therefore,the reaction that does not produce benzaldehyde is $C$.

Which of the following reactions does not produce benzaldehyde?

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