Ethanoic acid is a carboxylic acid. Its structural formula is CH3COOH\text{CH}_3\text{COOH}CH3COOH. Vinegar is a dilute solution of ethanoic acid in water.
Use the structural formula to give the functional group in ethanoic acid.
A few drops of universal indicator are added to some vinegar. Give the colour of the universal indicator in the vinegar.
A student adds vinegar to a spatula of sodium carbonate. Name the gas produced.
40 exam-style questions on AQA GCSE Chemistry 7.2 Reactions of alkenes and alcohols, covering 7.2.1 Structure and formulae of alkenes, 7.2.2 Reactions of alkenes, 7.2.3 Alcohols, 7.2.4a Carboxylic acids, and 7.2.4b Carboxylic acids as weak acids. Each one has a worked solution and a mark scheme showing where the marks go.