The reaction of toluene with $\mathrm{Cl}_2$ in presence of $\mathrm{FeCl}_3$ gives ' $X$ ' and reaction in…

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
  1. $\mathrm{X}=$ Benzal chloride, $\mathrm{Y}=\mathrm{o}$-chlorotoluene
  2. $\mathrm{X}=m$-chlorotoluene, $\mathrm{Y}=\mathrm{p}$-chlorotoluene
  3. $\mathrm{X}=a$-and $p$-chlorotoluene $\mathrm{Y}=$ trichloromethyl benzene
  4. $\mathrm{X}=$ benzyl chloride, $\mathrm{Y}=$ m-chlorotoluene

Solution

Key Idea In the presence of halogen carrier, electrophilic substitution accurs while in the presence of sunlight, substitution accurs at the side chain.

Asked in: NEET 2010 (Screening)

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