Question detail
What type of reaction occurs when sugar is fermented by yeast?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Reactions of alkenes and alcohols (chemistry only)
Question
- A. Oxidation
- B. Hydrolysis
- C. Combustion
- D. Fermentation
Answer
The correct option is Fermentation.
Explanation
The correct option is Fermentation. Fermentation is correct because it directly supports the approved learning objective to know the conditions used for fermentation of sugar using yeast. This belongs to Alcohols within Reactions of alkenes and alcohols (chemistry only), so the answer must use the correct organic chemistry context. The other options are incorrect when they confuse the organic family, formula type, reaction condition, product, or property being tested. Keep molecular formula, structural formula, displayed formula, and general formula distinct. Do not confuse alkanes with alkenes, saturated with unsaturated, cracking with combustion, polymers with monomers, or hydrocarbons with oxygen-containing alcohols and carboxylic acids. When formulae are used, preserve the stored notation exactly and explain the GCSE chemistry idea in words rather than using unsupported displayed-formula diagrams.
Common mistake
Misunderstanding Fermentation Conditions
Students often confuse the conditions for fermentation with those for other processes, such as distillation or combustion.
Focus on the specific conditions for fermentation, which typically include a warm environment, the presence of yeast, and an anaerobic (absence of oxygen) setting.
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