The products of the fermentation of a sugar are ethanol and:
Correct answer: C. Carbon dioxide
- A. Water
- B. Oxygen
- C. Carbon dioxide
- D. Sulfur dioxide
Explanation
Ethanol fermentation, also called alcoholic fermentation, is a biological process that converts sugars such as glucose, fructose, and sucrose into cellular energy, producing ethanol and carbon dioxide as by-products.
This question appeared on the UHS MDCAT 2008 paper, which you can sit online with every answer explained.
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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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