In the reaction,X and Y respectively are :- | vedclass

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(A) The reaction of benzene with $Cl_2$ in the presence of a Lewis acid like $FeCl_3$ is an electrophilic aromatic substitution reaction (chlorination

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$C_6H_5Cl$ and $C_6H_5SO_3H$

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(A) The reaction of benzene with $Cl_2$ in the presence of a Lewis acid like $FeCl_3$ is an electrophilic aromatic substitution reaction (chlorination),which yields chlorobenzene $(C_6H_5Cl)$ as product $X$.The reaction of benzene with concentrated $H_2SO_4$ and $SO_3$ (fuming sulfuric acid or oleum) is an electrophilic aromatic substitution reaction (sulfonation),which yields benzenesulfonic acid $(C_6H_5SO_3H)$ as product $Y$.Therefore,$X = C_6H_5Cl$ and $Y = C_6H_5SO_3H$.

In the reaction,
$X$ and $Y$ respectively are :-

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In the reaction,$X$ and $Y$ respectively are :-