MCQ
When phenol is allowed to react with $B{r_2}$ in $(i)$ $C{S_2}$ solution and $(ii)$ in aqueous solution, the resulting compounds are
  • A
    $(i)$ $2, 4, 6-$ tribromophenol and $(ii)$ $o-$ and $ p-$ bromophenol
  • B
    $(i) $ $m-$ bromophenol and $(ii)$  $2, 3, 4-$ tribromophenol
  • $(i)$ $ o-$ and  $p -$ bromophenol and $(ii)$  $2, 4, 6-$ tribromophenol
  • D
    $(i)$ $o-$  and $ m-$ bromophenol and $(ii)$  $2, 3, 4-$ tribromophenol

Answer

Correct option: C.
$(i)$ $ o-$ and  $p -$ bromophenol and $(ii)$  $2, 4, 6-$ tribromophenol
c
In aq. solution phenol ionize to give phenoxide in which highly activates benzene ring and give trisubstituted product while in presence of $C{S_2}$ an inert solvent phenol is unable to ionize due to which benzene ring is slightly activated.

Hence, monosubstituted product is obtained.
 

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free