Question:
Phenol reacts with bromine ($Br_{2}$) to give ______ presence of $CS_{2}$ in low temperature:
Phenol reacts with bromine ($Br_{2}$) to give ______ presence of $CS_{2}$ in low temperature:
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$CS_{2}$ (Non-polar) = Mono-substitution (Para); $H_{2}O$ (Polar) = Tri-substitution (2,4,6).
Updated On: May 15, 2026
- m-Bromophenol
- p-Bromophenol
- o,p-Dibromophenol
- 2,4,6-tribromophenol
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The Correct Option is B
Solution and Explanation
Step 1: Concept
Bromination of phenol is an electrophilic aromatic substitution reaction.
Step 2: Meaning
The solvent and temperature significantly influence the extent of substitution.
Step 3: Analysis
In non-polar solvents like $CS_{2}$ at low temperature, the monobromination occurs, yielding mainly p-bromophenol (and some ortho). In aqueous medium ($Br_{2}$ water), 2,4,6-tribromophenol is formed.
Step 4: Conclusion
In the presence of $CS_{2}$ at low temperature, p-bromophenol is the major product. Final Answer: (B)
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