Which one of the following alcohol has greater boiling point___________________?
Correct answer: C. glycerol
- A. ethanol
- B. ethylene glaycol
- C. glycerol
- D. methanol
Explanation
Boiling point rises when stronger intermolecular hydrogen bonding must be overcome. Glycerol has three hydroxyl groups and therefore forms a more extensive hydrogen-bonding network than ethylene glycol, ethanol or methanol, giving it the highest boiling point.
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About Alcohols
Alcohols contain a hydroxyl group attached to a saturated carbon atom and are classified as primary, secondary or tertiary. Their nomenclature, hydrogen bonding, acidity, oxidation, dehydration, reaction with sodium and conversion to haloalkanes are covered, along with the distinction between alcohols and phenols, where the hydroxyl group is attached directly to an aromatic ring.
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