# How will you obtain o-chlorotoluene from toluene?

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Hint: Chlorotoluene exists in 3 isomeric forms- Ortho, Meta, and Para. This consists of a disubstituted benzene ring with one Chloro and one Methyl group. o-chlorotoluene or ortho chlorotoluene is actually a name given to 1-Chloro 2-Methyl toluene. It is a colorless liquid with a strong irritating odour.

The Chlorine is broken into $C{l^ - }$ and $C{l^ + }$ ions in the presence of a liquid catalyst. This $C{l^ + }$ ion (Electrophile) attacks the phenyl ring and hence results in the product. The Methyl group attached acts as an electron-donating group. The Methyl group in the toluene is ortho and para directing and thus the electrophilic substitution reaction occurs at the ortho and para position.