Identify the product B in the following react | vedclass

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(A) The reaction proceeds in two steps:$1$. The first step is a nucleophilic aromatic substitution reaction. The dimethylamine $(CH_3)_2NH$ acts as a

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$H_2N-C_6H_4-N(CH_3)_2$

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(A) The reaction proceeds in two steps:$1$. The first step is a nucleophilic aromatic substitution reaction. The dimethylamine $(CH_3)_2NH$ acts as a nucleophile and replaces the fluorine atom at the para position to the nitro group,forming $p-nitro-N,N-dimethylaniline$ as intermediate $(A)$.$2$. The second step is the catalytic hydrogenation of the nitro group using $H_2/Ni$. The nitro group $(-NO_2)$ is reduced to an amino group $(-NH_2)$.Therefore,the final product $(B)$ is $N,N-dimethyl-p-phenylenediamine$,which is $H_2N-C_6H_4-N(CH_3)_2$.

Identify the product $B$ in the following reaction sequence:
$F-C_6H_4-NO_2 \xrightarrow[(ii) H_2/Ni]{(CH_3)_2NH, DMF, \Delta} (B)$

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Identify the product $B$ in the following reaction sequence:$F-C_6H_4-NO_2 \xrightarrow[(ii) H_2/Ni]{(CH_3)_2NH, DMF, \Delta} (B)$