Identify X in the following reaction sequence | vedclass

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(D) The reaction sequence is as follows:$1$. $p$-toluidine reacts with $NaNO_2$ and $HCl$ at $273-278 \ K$ to form $p$-toluenediazonium chloride (Diaz

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$p$-nitrotoluene

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(D) The reaction sequence is as follows:$1$. $p$-toluidine reacts with $NaNO_2$ and $HCl$ at $273-278 \ K$ to form $p$-toluenediazonium chloride (Diazotisation).$2$. The diazonium salt reacts with $HBF_4$ to form $p$-toluenediazonium fluoroborate,which upon heating decomposes to give $p$-fluorotoluene (Balz-Schiemann reaction).$3$. $p$-fluorotoluene reacts with $NaNO_2$ and $Cu$ upon heating to replace the fluorine atom with a nitro group,yielding $p$-nitrotoluene.Therefore,the final product $X$ is $p$-nitrotoluene.

Identify $X$ in the following reaction sequence:

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