Lesson 5.7.1.2
5.7.1.2 Fractional distillation and petrochemicals Quiz: AQA Combined Science, Unit 14
20 questions
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Lesson 5.7.1.2, Fractional distillation and petrochemicals: 20 multiple choice questions for the AQA GCSE Combined Science (8464), Unit 14: Organic chemistry, written with Revision Ninja.
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The 20 questions
-
Each fraction obtained from fractional distillation contains molecules with:
- Different elements
- Similar carbon atoms
- Only single atoms
- Identical boiling points
-
What two main processes are involved in fractional distillation?
- Reduction and oxidation
- Filtration and crystallisation
- Melting and freezing
- Evaporation and condensation
-
Which fuel is produced from crude oil?
- Petrol
- Polythene
- Detergents
- Lubricants
-
Which of these is a petrochemical material?
- Polymers
- Limestone
- Oxygen gas
- Sodium chloride
-
Which substance is NOT produced by the petrochemical industry?
- Solvents
- Detergents
- Polymers
- Sodium chloride
-
Why are fractions with smaller molecules collected near the top of the column?
- Greater density
- Lower boiling points
- Higher boiling points
- Darker colour
-
Where in a fractionating column is heavy fuel oil collected?
- Near bottom
- Middle
- Near top
- Very middle
-
Which fuel is produced by fractional distillation of crude oil?
- Diesel oil
- Carbon monoxide
- Pure hydrogen
- Pure oxygen
-
What are liquefied petroleum gases produced from?
- Pure water
- Metal ore
- Crude oil
- Limestone
-
Which property is used to separate fractions by fractional distillation?
- Boiling point
- Magnetism
- Solubility in water
- Colour
-
In fractional distillation, vapour cools and condenses at specific:
- Colour changes
- Densities only
- Temperature levels
- Pressure levels
-
Petrochemical industry uses crude oil fractions as:
- Fuels and feedstock
- Food additives only
- Filters and sieves
- Catalysts for reactions
-
What useful products are made from crude oil feedstock?
- Wood fibres
- Pure metals
- Ceramic bricks
- Polymers and solvents
-
Which crude oil fraction contains the most carbon atoms?
- Petrol
- Refinery gases
- Bitumen
- Kerosene
-
What causes the different fractions to separate in a fractionating column?
- Temperature gradient
- Density gradient
- Pressure gradient
- Catalyst layers
-
What property of substances does fractional distillation rely on?
- Boiling points
- Magnetic attraction
- Melting points
- Electrical conductivity
-
What separation process uses vapours condensing at different column levels?
- Crystallisation
- Paper chromatography
- Simple filtration
- Fractional distillation
-
Which fraction has smaller molecules and a lower boiling point than bitumen?
- Heavy fuel oil
- Petrol
- Lubricating oil
- Diesel oil
-
What is the main difference between heavy fuel oil and kerosene?
- Metallic bonding
- Molecule size
- Proton number
- Ionic charge
-
What are the molecular characteristics of liquefied petroleum gases?
- Small molecules
- Heavy ionic lattices
- Very large polymers
- Long-chain solids
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