Uses of esters
3 marks · EasyName one ester used for a fruit flavouring in food.
State what property of esters makes them useful as perfumes.
Give one example of a product (other than food) where esters are used.
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(a) Pentyl acetate (banana), Methyl butanoate (apple), or other correct example
(b) Pleasant/fruity smell or volatility
(c) Perfumes, aftershave, or cosmetics
Show mark scheme and worked solution
Marking points
B1 (a) · 1 mark · Names a correct ester used as a fruit flavouring, e.g. pentyl acetate.
B1 (b) · 1 mark · States a property such as pleasant smell or volatility.
B1 (c) · 1 mark · Gives a correct example of a non-food product containing esters (e.g. perfume).
Worked solution
a) Pentyl acetate (banana flavour)
b) Esters have pleasant or fruity smells.
c) Used in perfumes.