Alcohols Phenols and EthershardMCQ MULTIPLE

Electrophilic aromatic substitution on the phenol ring is exceptionally facile. Which of the followiAlcohols Phenols and Ethers Chemistry Question

Question

Electrophilic aromatic substitution on the phenol ring is exceptionally facile. Which of the following statements regarding the directing effects and specific reactions are true?

Answer: A,B,C

💡 Solution & Explanation

The hydroxyl group is strongly activating because its lone pairs participate in resonance (+R effect), drastically increasing electron density at the ortho and para positions. This makes electrophilic attack very easy. In highly ionizing solvents like water, bromination cannot be stopped at monosubstitution, yielding the 2,4,6-tribromophenol precipitate. Statement D is false; oxygen donates via resonance (+R) but withdraws inductively (-I).

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