The incorrect statement regarding the reactio | vedclass

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(D) $1$. The reaction of $1-fluoro-2, 4-dinitrobenzene$ with hydrazine $(NH_2-NH_2)$ proceeds via nucleophilic aromatic substitution to form $2, 4-din

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$B$ is known as an oxime.

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(D) $1$. The reaction of $1-fluoro-2, 4-dinitrobenzene$ with hydrazine $(NH_2-NH_2)$ proceeds via nucleophilic aromatic substitution to form $2, 4-dinitrophenylhydrazine$ $(A)$. Thus,statement $A$ is correct.$2$. The reaction of $2, 4-dinitrophenylhydrazine$ $(A)$ with $butanone$ in the presence of $H^+$ and heat is a condensation reaction (dehydration) that forms a hydrazone $(B)$. Thus,statement $B$ is correct.$3$. The product $B$ is a hydrazone,not an oxime (oximes are formed from hydroxylamine,$NH_2OH$). Thus,statement $D$ is incorrect.$4$. The hydrazone formed $(B)$ contains a $C=N$ bond with different groups on the nitrogen and carbon atoms,allowing for geometrical isomerism ($syn$ and $anti$ forms). Thus,statement $C$ is correct.

List-$I$ (Amine)	List-$II$ ($pK_b$ value)
$A$. $N,N$-Dimethylaniline	$I$. $9.30$
$B$. Aniline	$II$. $8.92$
$C$. $N$-Ethylethanamine	$III$. $9.38$
$D$. $N$-Methylaniline	$IV$. $3.00$

The incorrect statement regarding the reaction shown below is:

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Consider the following sequence of reactions. Assuming that the reaction proceeds to completion, then $137 \ mg$ of $4-$nitrotoluene will produce . . . . . . $mg$ of $B$. (Given molar mass in $g \ mol^{-1}: H = 1, C = 12, N = 14, O = 16, Br = 80$)

$p$-Toluidine reacts with benzene diazonium chloride to form a compound,which on boiling with $aq. H_2SO_4$ gives ........ products.

Match the following:
List-$I$ (Amine) List-$II$ ($pK_b$ value)
$A$. $N,N$-Dimethylaniline $I$. $9.30$
$B$. Aniline $II$. $8.92$
$C$. $N$-Ethylethanamine $III$. $9.38$
$D$. $N$-Methylaniline $IV$. $3.00$

The correct answer is

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