Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Chapter
Alcohols
130 practice questions
Topics covered
- Drawing and naming the alcohols21 practice questions
- Ethanol burns in air19 practice questions
- Ethanol can be oxidised by heating with potassium dichromate(VI) in dilute sulfuric acid21 practice questions
- Making ethanol by fermentation19 practice questions
- Making ethanol by the hydration of ethene19 practice questions
- Comparing the two methods of producing ethanol20 practice questions
Practice questions
51–52 of 52 · Easy
Question 51
5 marks · Easy
Answer and see the solution →Ethanol can be used as a fuel. The equation for its complete combustion is:
(a)[1 mark]State the molecular formula of ethanol.
(b)[1 mark]How many moles of carbon dioxide are made from 1 mole of ethanol in complete combustion?
(c)[3 marks]Calculate the total number of oxygen atoms found in the water produced when 0.5 mol of ethanol burns completely. (Show your working.)
Question 52
5 marks · Easy
Answer and see the solution →Alcohols are used as biofuels. This question is about naming alcohols and their reactions.
(a)[1 mark]Give the IUPAC name for the alcohol with the structural formula CH3CH2CH2OH.
(b)[1 mark]State the homologous series to which ethanol belongs.
(c)[2 marks]Write the word equation for the complete combustion of ethanol.
(d)[1 mark]State one advantage of using ethanol as a fuel.