Consider the following reactions. From these | vedclass

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(D) Let us analyze each reaction:$(A)$ Nitriles on partial hydrolysis under mild conditions yield amides $(R-CONH_2)$,not carboxylic acids.$(B)$ Grign

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$B$ and $E$ only

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(D) Let us analyze each reaction:$(A)$ Nitriles on partial hydrolysis under mild conditions yield amides $(R-CONH_2)$,not carboxylic acids.$(B)$ Grignard reagents react with $CO_2$ followed by acidic hydrolysis to form carboxylic acids $(R-COOH)$. This is a standard method for preparing carboxylic acids.$(C)$ This is the Stephen reduction,which converts nitriles to aldehydes $(R-CHO)$.$(D)$ $PCC$ (Pyridinium chlorochromate) is a mild oxidizing agent that oxidizes primary alcohols to aldehydes $(R-CHO)$.$(E)$ Benzoyl chloride undergoes Rosenmund reduction with $H_2/Pd-BaSO_4$ to form benzaldehyde,which is then oxidized to benzoic acid by $Br_2/H_2O$ (acting as a mild oxidizing agent in this context). Thus,it yields a carboxylic acid.Therefore,reactions $(B)$ and $(E)$ produce carboxylic acids as major products.

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