Which reagent from the following is used for | vedclass

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(C) The reduction of nitriles to aldehydes is known as the $Stephen$ reduction. In this reaction,nitriles $(R-C \equiv N)$ are reduced to imines using

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$SnCl_2, HCl$

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(C) The reduction of nitriles to aldehydes is known as the $Stephen$ reduction. In this reaction,nitriles $(R-C \equiv N)$ are reduced to imines using stannous chloride $(SnCl_2)$ in the presence of hydrochloric acid $(HCl)$,which are then hydrolyzed to form aldehydes $(RCHO)$. The reaction is: $R-C \equiv N \xrightarrow[(ii) H_3O^+]{(i) SnCl_2 / dil. HCl} RCHO + NH_4Cl$

Which reagent from the following is used for the preparation of aliphatic aldehyde from nitriles?

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