Uses of esters
3 marks · Easy| Ester | Typical use |
|---|---|
| Methyl butanoate | Flavouring (apple) |
| Ethyl ethanoate | Solvent |
| Propyl ethanoate | Perfume |
| Pentyl acetate | Flavouring (banana) |
Identify two esters from the table used as flavourings.
Which ester from the table is used as a perfume?
Give the fruit each flavouring (from part a) is associated with.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
(a) Methyl butanoate, Pentyl acetate
(b) Propyl ethanoate
(c) Apple and banana
Common mistakes: Choosing 'Ethyl ethanoate' as a flavouring.
Show mark scheme and worked solution
Marking points
B1 (a) · 1 mark · Correctly identifies both esters used as flavourings.
B1 (b) · 1 mark · Correctly identifies the ester used as perfume.
B1 (c) · 1 mark · States that methyl butanoate is apple flavour and pentyl acetate is banana flavour.
Worked solution
a) Methyl butanoate and Pentyl acetate
b) Propyl ethanoate
c) Apple and banana