The difference in the reaction of phenol with bromine in chloroform and bromine in water medium is due to:
Hyperconjugation in substrate
Polarity of solvent
Free radical formation
Electromeric effect the substrate
On bromination of phenol gives tri substiuted product while in non-polar solvent soch as or or mono substituted product. This is for each case of formation of bromium ion in polar solvents than non-polar solvents.
Hence, Option (2) is correct.
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