Question

Which compound can not produce tribromo derivative on reaction with $B{r}_2$ water.

• A.
• B.
• C.
• D. all of the above

Answer 1

The correct option is C

Phenol on treatement with bromine water gives 2,4,6-tribromophenol as it is strongly activating.

(c) will not give a tribromo product as it's para position is blocked. In (b), Br is substituted by ipso substitution replacing $-S{O}_{3}H$ group.