Question detail
What is the primary method of producing ethanol through fermentation?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Alcohols
Question
- A. Using ethene and steam
- B. Using glucose and yeast
- C. Using ethanol and oxygen
- D. Using carbon dioxide and water
Answer
Using glucose and yeast
Explanation
Fermentation involves the conversion of glucose into ethanol and carbon dioxide by yeast. This method is suitable for producing ethanol from renewable resources, while hydration of ethene is a synthetic process using non-renewable resources.
Common mistake
Fermentation vs Hydration of Ethene
Students often confuse fermentation with hydration of ethene, thinking they are the same process for producing ethanol.
Fermentation is a biological process using yeast to convert sugars into ethanol and carbon dioxide, typically at lower temperatures and without the need for high pressure. In contrast, hydration of ethene is a chemical reaction where ethene reacts with steam in the presence of a catalyst at high temperature and pressure. Understanding these differences helps in selecting the appropriate method based on the desired conditions and scale of production.
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