Chemistry C1 6.1 Extracting vegetable oil.

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How and from where can vegetable oils be extracted?
Seeds, nuts and fruits by pressing or by distillation.
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Why are vegetable oils important foods?
They provide nutrients and a lot of energy.
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What can vegetable oils be used to make?
Biofuels.
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What is he structure of unsaturated oils and what is the test for them?
They contain carbon-carbon double bonds (C=C) and decolourise bromine water (from orange to colourless).
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What are some seeds, nuts and fruits rich in?
Vegetable oils.
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What is the process of extracting vegetable oil by crushing and pressing?
The plant material is crushed and pressed, followed by removing water and other impurities.
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What is the process of extracting vegetable oil by distillation?
The plant material is mixed with water to produce a mixture of oil and water from which the oil can be separated.
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What are the molecules in vegetable oils made of?
Hydrocarbon chains.
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What are vegetable oils with several double bonds in each molecule called?
Polyunsaturated.
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What two methods are used to extract vegetable oils?
Crushing and pressing; and distillation (with water/steam).
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Why are vegetable oils important foods?
They provide energy and nutrients.
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Why are some vegetable oils described as unsaturated?
Their molecules have carbon-carbon double bonds.
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Other cards in this set

Card 2

Front

Why are vegetable oils important foods?

Back

They provide nutrients and a lot of energy.

Card 3

Front

What can vegetable oils be used to make?

Back

Preview of the front of card 3

Card 4

Front

What is he structure of unsaturated oils and what is the test for them?

Back

Preview of the front of card 4

Card 5

Front

What are some seeds, nuts and fruits rich in?

Back

Preview of the front of card 5
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