Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Chapter
Esters
68 practice questions
Topics covered
Practice questions
11–12 of 12 · Hard
Question 11
7 marks · Hard
Answer and see the solution →A student mixes methanol and propanoic acid in the presence of a few drops of concentrated sulfuric acid and heats the mixture.
(a)[2 marks]Describe the type of reaction taking place and explain what is meant by 'esterification'.
(b)[3 marks]Draw the displayed formula of the ester formed in this reaction.
(c)[1 mark]State one common use for this ester.
(d)[1 mark]Write the balanced chemical equation (using molecular formulae, not names) for the formation of the ester in part (b).
Question 12
7 marks · Hard
Answer and see the solution →Some esters have pleasant smells and are widely used in everyday products.
(a)[2 marks]Give the systematic name of the ester with molecular formula C3H7COOCH3.
(b)[2 marks]State the names of the alcohol and the carboxylic acid needed to make this ester.
(c)[3 marks]Suggest one use of this ester and explain why esters are suitable for this use.