In which of the following reactions will cyan | vedclass

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(C) The dehydration of amides using dehydrating agents like $P_4O_{10}$,$POCl_3$,or $P_2O_5$ yields nitriles (cyanides). The reaction is: $Ph-CONH_2 \

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$Ph-CONH_2 \xrightarrow{P_4O_{10}}$

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(C) The dehydration of amides using dehydrating agents like $P_4O_{10}$,$POCl_3$,or $P_2O_5$ yields nitriles (cyanides). The reaction is: $Ph-CONH_2 \xrightarrow{P_4O_{10}} Ph-CN + H_2O$. Other reactions: $(a)$ $Ph-CO-CH_3 \xrightarrow{LiAlH_4} Ph-CH(OH)-CH_3$ (Alcohol). $(b)$ $Ph-CONH_2 \xrightarrow{Br_2/NaOH} Ph-NH_2$ (Amine - Hofmann Bromamide reaction). $(d)$ $Ph-COOH$ $\xrightarrow{SOCl_2} Ph-COCl$ $\xrightarrow{NH_3} Ph-CONH_2$ (Amide).

In which of the following reactions will cyanide be obtained as a major product?

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