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Question: Answered & Verified by Expert
The reaction of toluene with $\mathrm{Cl}_2$ in presence of $\mathrm{FeCl}_3$ gives ' $X$ ' and reaction in presence of light gives ' $Y$ '. Thus, ' $X$ ' and ' $Y$ ' are
ChemistryHaloalkanes and HaloarenesNEETNEET 2010 (Screening)
Options:
  • A $\mathrm{X}=$ Benzal chloride, $\mathrm{Y}=\mathrm{o}$-chlorotoluene
  • B $\mathrm{X}=m$-chlorotoluene, $\mathrm{Y}=\mathrm{p}$-chlorotoluene
  • C $\mathrm{X}=a$-and $p$-chlorotoluene
    $\mathrm{Y}=$ trichloromethyl benzene
  • D $\mathrm{X}=$ benzyl chloride, $\mathrm{Y}=$ m-chlorotoluene
Solution:
1347 Upvotes Verified Answer
The correct answer is: $\mathrm{X}=a$-and $p$-chlorotoluene
$\mathrm{Y}=$ trichloromethyl benzene
Key Idea In the presence of halogen carrier, electrophilic substitution accurs while in the presence of sunlight, substitution accurs at the side chain.

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