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Chemistry 5070 · Cambridge (CAIE) O Level

Combustion

5 past-paper questions on Combustion · examined 2020–2025.

20251 question

5070/21 · M/J · Q5(b)(i) [2]Sign up to mark my answer →

Explain how carbon monoxide, CO, is formed in a petrol engine. Include a symbol equation.

20231 question

5070/22 · O/N · Q6(b)(i) [1]Sign up to mark my answer →

Name one other substance formed during the incomplete combustion of carbon-containing fuels.

20211 question

5070/22 · O/N · Q2(a) [2]Sign up to mark my answer →

State which two gases in the list show that incomplete combustion has taken place in this car engine.

20202 questions

5070/21 · M/J · Q7(b) [2]Sign up to mark my answer →

Carbon dioxide is a product of the complete combustion of octane, C8H18. Construct the equation for this reaction.

5070/22 · O/N · Q5(b)(iii) [2]Sign up to mark my answer →

Name two other substances formed when propene undergoes incomplete combustion.

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