Question detail
List the first four members of the homologous series of alcohols and provide their molecular formulae.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Reactions of alkenes and alcohols (chemistry only)
Question
List the first four members of the homologous series of alcohols and provide their molecular formulae.
Answer
The first four members of the homologous series of alcohols are methanol (CH3OH), ethanol (C2H5OH), propanol (C3H7OH), and butanol (C4H9OH).
Explanation
This question evaluates the recall of the names and molecular formulae of the first four alcohols, which is fundamental knowledge in organic chemistry. This response is aligned to Alcohols because it explains investigate reactions of alcohols. (AT 2, 5, 6) using the correct AQA GCSE Chemistry organic context. 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 Alcohol Reactions
Students often confuse the reactions of alcohols with those of alkenes, thinking they behave the same way in chemical reactions.
Focus on the functional group –OH in alcohols and remember that they undergo different reactions compared to alkenes, particularly in combustion and oxidation.
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