Same chapter3 marksDifficulty: Medium
What is the Reimer-Tiemann reaction, and what does it produce from phenol?
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3 marksDifficulty: Medium
Why is phenol more acidic than ethanol?
Original Khojo Papers practice question — not from a past board paper.
Answer
The phenoxide ion left after losing a proton is stabilised by delocalisation of the negative charge over the aromatic ring, so the loss of the proton is easier. The ethoxide ion has no such delocalisation, and the alkyl group is electron-releasing, which intensifies the negative charge and makes ethanol a far weaker acid.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Electron-withdrawing groups on the ring, as in nitrophenol, increase the acidity further.
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