GCSE AQA Chemistry: Alcohols Revision | GCSE AQA 化学：醇 考点精讲

📚 GCSE AQA Chemistry: Alcohols Revision | GCSE AQA 化学：醇 考点精讲

Alcohols are a vital homologous series in organic chemistry, recognised by the hydroxyl functional group. In AQA GCSE Chemistry, you must understand their structure, naming, key reactions, and the two ways to produce ethanol. This comprehensive revision guide breaks down every exam-relevant point with paired English and Chinese explanations to boost your confidence.

醇是有机化学中一个重要的同系物，特征官能团为羟基。在AQA GCSE化学中，你需要掌握醇的结构、命名、重要反应以及两种制取乙醇的方法。这份详细的复习指南用中英双语解释每一个考点，帮助你在考试中自信作答。

1. What are Alcohols? | 什么是醇？

Alcohols are organic compounds containing one or more hydroxyl (-OH) groups attached to a saturated carbon atom. They form a homologous series, sharing a common general formula and displaying a gradual trend in physical properties.

醇是含有一个或多个羟基（-OH）连接在饱和碳原子上的有机化合物。它们组成同系物，具有相同的通式，且物理性质呈现规律性变化。

2. Functional Group & General Formula | 官能团与通式

The functional group of alcohols is -OH. For saturated, straight-chain alcohols with just one -OH group, the general formula is CₙH₂ₙ₊₁OH (n ≥ 1). This can also be expressed as CₙH₂ₙ₊₁O, but the -OH form directly shows the functional group.

醇的官能团是 -OH。对于饱和直链一元醇，通式为 CₙH₂ₙ₊₁OH（n ≥ 1）。也可写作 CₙH₂ₙ₊₁O，但带 -OH 的形式能直接展示官能团。

3. Naming Alcohols | 醇的命名

Select the longest carbon chain that includes the carbon bonded to the -OH group. The suffix is ‘-ol’, and a number indicates the position of

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