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Alcohols, Phenols and Ethers
Physical and Chemical Properties of Alcohols, Phenols and Ethers – Basicity
1 question from 1 paper, each with its answer.
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Concepts tested
- relative ease of protonation of oxygen compounds
All Questions
2019 1 question
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The compound that is most difficult to protonate is:In phenol ($Ph-O-H$), the lone pair of electrons on oxygen is involved in resonance with the benzene ring, so oxygen carries a partial positive charge. Hence an incoming proton cannot attack it easily, and phenol is the most difficult to protonate.