Sample exam questions - chemistry of the atmosphere - AQAMultiple choice questions

Understanding how to approach exam questions helps to boost exam performance. Question types will include multiple choice, structured, mathematical and practical questions.

Part ofChemistry (Single Science)Chemistry of the atmosphere

Multiple choice questions

Multiple choice questions appear throughout both exam papers, and at both Foundation tier and Higher tier. Multiple choice questions are usually asked as questions, often starting with 'What is...?' or 'Why...?'.

You have three or four options to choose from in a multiple choice question. You must choose the number of options asked for in the question by placing ticks in boxes. Most multiple choice questions require just one tick, but a few ask for two ticks. You will not get a mark if you leave all the boxes blank, or if you put a tick in more than the required number of boxes.

Multiple choice questions often have two answers that could, at first glance, be correct. It is important to check all the answers before deciding which box to tick. It is also important to check that your chosen statement answers the question - some questions might include an option that is a correct statement, but that does not answer the question.

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Sample question 1 - Foundation

Question

Algae and plants use carbon dioxide and water to produce oxygen. What is the name of this process? [1 mark]

Tick one box.

ACarbon capture
BCombustion
CPhotosynthesis
DPolymerisation
A
Carbon capture
B
Combustion
C
Photosynthesis
D
Polymerisation

This question is AQA material which is reproduced by permission of AQA.

Sample question 2 - Foundation

Question

How can countries reduce carbon dioxide emissions? [1 mark]

Tick one box.

AOnly burn methane
BUse renewable energy supplies
CUse waste plastic bags as fuel
A
Only burn methane
B
Use renewable energy supplies
C
Use waste plastic bags as fuel

This question has been written by a Bitesize consultant as a suggestion to the type of question that may appear in an exam paper.

Sample question 3 - Higher

Question

The hydrocarbon C4H8 was burnt in air. Incomplete combustion occurred. Which equation correctly represents the incomplete combustion reaction? [1 mark]

Tick one box.

AC4H8 + 4O → 4CO + 4H2
BC4H8 + 4O2 → 4CO + 4H2O
CC4H8 + 6O2 → 4CO2 + 4H2O
DC4H8 + 8O → 4CO2 + 4H2
A
C4H8 + 4O → 4CO + 4H2
B
C4H8 + 4O2 → 4CO + 4H2O
C
C4H8 + 6O2 → 4CO2 + 4H2O
D
C4H8 + 8O → 4CO2 + 4H2

This question is AQA material which is reproduced by permission of AQA.

Sample question 4 - Higher

Question

Which of the following is a greenhouse gas? [1 mark]

Tick one box.

AMethane
BNitrogen
COzone
DSulfur dioxide
A
Methane
B
Nitrogen
C
Ozone
D
Sulfur dioxide

This question has been written by a Bitesize consultant as a suggestion to the type of question that may appear in an exam paper.