Cambridge IGCSE Chemistry practice

Paper 3 structured question: Fuels

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Paper

Marks

Topic

Fuels

Exam-style question

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Paper 3Theory (Core)1 marks

Natural gas is a widely used energy source.

Description

Natural gas is primarily composed of methane, along with small amounts of other hydrocarbons such as ethane and propane.

a
State the primary component of natural gas.
Your answer
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[1]

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Paper 3Theory (Core)1 marks

Description

Methane is released during the decomposition of organic matter and is a potent greenhouse gas that contributes to climate change.

a
State one source of methane emissions.
Your answer
Aim for approximately 1 distinct marking point.
[1]