6.1 Extracting Vegetable Oil

Question 1

What are seeds nuts and fruits rich in?

Answer 1

Vegetable oil

Question 2

What two ways can vegetable oil be extracted?

Answer 2

By crushing and pressing the plant material followed by removing the water and other impurities, or by distilling the plant material mixed with water

Question 3

What does distilling plant material with water produce?

Answer 3

A mixture of oil and water from which the oil can be separated

Question 4

What to vegetable oils provide us with?

Answer 4

Energy and important nutrients

Question 5

What happens when vegetable oils burn?

Answer 5

They release a lot of energy when they burn in air

Question 6

What can vegetable oils be used as?

Answer 6

Fuels like biofuels and biodiesel

Question 7

What do the molecules in vegetable oils have?

Answer 7

Hydrocarbon chains

Question 8

What are molecules with carbon-carbon double bonds like?

Answer 8

Unsaturated

Question 9

What is it called if there are several double bonds in each molecule?

Answer 9

Polyunsaturated

Question 10

What do unsaturated oils react with?

Answer 10

Bromine water, turning it from orange to colourless