A sample of methanol is heated with an excess of acidified potassium dichromate(VI) until all of the methanol has reacted. The solution changes from orange to green.
Identify the organic product and explain what the colour change shows.
97 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.