An alcohol which can be prepared by fermentation is_________________?
Correct answer: C. CH3 - CH2 - OH
- A. CH3OH
- B. C3H7OH
- C. CH3 - CH2 - OH
- D. C6H5OH
Explanation
Fermentation of glucose by yeast produces ethanol, represented by CH3CH2OH, along with carbon dioxide: C6H12O6 gives 2C2H5OH + 2CO2. Methanol is poisonous, phenol is not a fermentation product, and propanol is not the usual alcohol formed in this process. Students may choose methanol because it is also a simple alcohol, but fermentation commonly gives ethanol.
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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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535 free Alcohols and Phenols MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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