Which of the following reactions is incorrect | vedclass

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(C) Let us analyze each reaction:$(A)$ Acidic hydrolysis of benzonitrile $(C_6H_5CN)$ yields benzoic acid $(C_6H_5COOH)$. This is correct.$(B)$ Contro

Vedclass · Accepted Answer

$C_6H_5CN \xrightarrow[(2) H_2O]{(1) LiAlH_4} C_6H_5CH_2OH$

Vedclass · Answer

(C) Let us analyze each reaction:$(A)$ Acidic hydrolysis of benzonitrile $(C_6H_5CN)$ yields benzoic acid $(C_6H_5COOH)$. This is correct.$(B)$ Controlled reduction of nitriles with $DIBAL-H$ followed by hydrolysis yields aldehydes $(C_6H_5CHO)$. This is correct.$(C)$ Reduction of nitriles with $LiAlH_4$ followed by hydrolysis yields primary amines $(C_6H_5CH_2NH_2)$,not primary alcohols $(C_6H_5CH_2OH)$. This is incorrect.$(D)$ Reaction of nitriles with Grignard reagents $(PhMgBr)$ followed by hydrolysis yields ketones $(C_6H_5COC_6H_5)$. This is correct.Therefore,the incorrect reaction is $(C)$.

Column $I$	Column $II$
$A$. $Ph-N_2Cl + Ph-OH \xrightarrow{NaOH/H_2O, 0^{\circ}C} Ph-N=N-Ph-OH$	$p$. Racemic mixture
$B$. $Pinacol \xrightarrow{H_2SO_4} Pinacolone$	$q$. Addition reaction
$C$. $Ph-CO-CH_3 \xrightarrow{1. LiAlH_4, 2. H_3O^+} Ph-CH(OH)-CH_3$	$r$. Substitution reaction
$D$. $4-chlorocyclohexanethiol \xrightarrow{Base} Thiacycloheptane$	$s$. Coupling reaction
	$t$. Carbocation intermediate

Which of the following reactions is incorrect?

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