Key term for Edexcel GCSE Chemistry, used in Alcohols and Carboxylic Acids.
An alternative term for a water trap, used to maintain anaerobic conditions by sealing out oxygen.
Air lock appears in Edexcel GCSE Chemistry revision content for Qualitative Analysis, Hydrocarbons and Polymers, especially Alcohols and Carboxylic Acids and Suggested Practicals.
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