Plant Oils And Their Uses Worksheet With Answers - George Pindar School Page 20
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36%
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(b)
Olive oil contains 89
unsaturated fats and 11
saturated fats.
What is the test and the result for unsaturated fats?
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(2)
(c)
Olive oil is hardened to make margarine.
Describe the reaction and conditions needed to harden a vegetable oil.
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(3)
(Total 9 marks)
Q14.
A company compared the relative ‘unsaturation’ of five oils. Bromine water was added from
a burette to equal amounts of each oil until the bromine water remained orange-yellow.
The volume added was recorded.
Volume of bromine water
Type of oil
3
added in cm
Maize
25.6
Olive
6.1
Palm
4.9
Soya Bean
29.9
Sunflower
25.1
(i)
What would you see when the first few drops of bromine water are added to
each oil?
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(1)
Page 20 of 36
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