Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Section
Ethanol burns in air
19 practice questions
Practice questions
1–3 of 3 · Hard
Question 1
2 marks · Hard
Answer and see the solution →Describe what would be observed if ethanol vapour is passed over heated copper(II) oxide, and state the type of reaction taking place.
Question 2
5 marks · Hard
Answer and see the solution →A student investigates the combustion of ethanol and oxidation by potassium dichromate. Study the following information and answer the questions that follow.
(a)[1 mark]Write the structural formula of ethanol.
(b)[2 marks]Ethanol burns completely in air. Name the two products formed in this reaction and state whether this reaction is exothermic or endothermic.
(c)[2 marks]Describe what is observed when ethanol is warmed with acidified potassium dichromate(VI) solution.
Question 3
2 marks · Hard
Answer and see the solution →Explain why water is always formed as a product when any alcohol burns completely in air.