Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Chapter
Esters
68 practice questions
Topics covered
Practice questions
1–10 of 28 · Normal
Question 1
2 marks · Normal
Answer and see the solution →Describe what happens in an esterification reaction between propanoic acid and methanol.
Question 2
4 marks · Normal
Answer and see the solution →This question is about the naming of esters.
(a)[1 mark]State the name of the ester formed from butanoic acid and propanol.
(b)[1 mark]Give the name of the alcohol used to prepare propyl methanoate.
(c)[1 mark]A student writes the name 'ethyl propanoate'. Write the name of its carboxylic acid component.
(d)[1 mark]Explain what the '-oate' part of an ester’s name represents.
Question 3
3 marks · Normal
Answer and see the solution →Methanol reacts with benzoic acid (C6H5COOH) to form an ester.
Write the structural formula for the ester produced when one molecule of each reactant combine.
Question 4
4 marks · Normal
Answer and see the solution →The following table shows the names of several esters and their uses.
Ester Name Alcohol Used Carboxylic Acid Used Typical Use Methyl methanoate Methanol Methanoic acid Solvent Ethyl ethanoate Ethanol Ethanoic acid Nail polish remover Butyl propanoate Butanol Propanoic acid Flavouring Propyl butanoate Propanol Butanoic acid Perfume (a)[1 mark]Which ester in the table is made from propanol and butanoic acid?
(b)[1 mark]Name the acid used to produce butyl propanoate.
(c)[1 mark]State the typical use of methyl methanoate.
(d)[1 mark]Give the alcohol required to produce ethyl ethanoate.
Question 5
1 mark · Normal
Answer and check →Which of the following is the correct structural formula for isopropyl ethanoate, formed from propan-2-ol and ethanoic acid?
- A.CH3COOCH(CH3)2
- B.CH3COOC3H7
- C.C2H5COOCH3
- D.CH3CH2COOCH2CH3
Question 6
2 marks · Normal
Answer and see the solution →State the two substances required to make propyl ethanoate. Give both the alcohol and the acid you would use.
Question 7
4 marks · Normal
Answer and see the solution →This question concerns the naming of esters.
(a)[1 mark]State the name of the ester formed from methanoic acid and butanol.
(b)[1 mark]Give the formula for the acid required to make ethyl propanoate.
(c)[2 marks]Write the name of the alcohol and the acid required to make butyl methanoate.
Question 8
3 marks · Normal
Answer and see the solution →Ethanoic acid reacts with methanol when heated with a few drops of concentrated sulfuric acid.
(a)[1 mark]State the name given to this type of reaction.
(b)[1 mark]Draw the full structural formula of the ester formed in this reaction.
(c)[1 mark]Explain briefly how the water molecule is formed during this reaction.
Question 9
2 marks · Normal
Answer and see the solution →State two uses of esters in everyday life.
Question 10
4 marks · Normal
Answer and see the solution →A group of chemists are making compounds for use in food and cosmetic products.
(a)[1 mark]State one common property of esters that makes them useful as perfumes.
(b)[2 marks]Name two types of products (other than perfumes) where esters are commonly used as flavourings.
(c)[1 mark]Give a reason why chemists use mixtures of esters in artificial flavourings.