ConceptConceptDocsDocuments

CAIE IGCSE Chemistry 11.3 Fuels Question Bank

Practise interpreting fuels, hydrocarbons and petroleum fractions using tables, refinery diagrams and combustion evidence.

Syllabus
2026–2028
Course
Chemistry 0620

Exam points

  • interpret refinery diagrams to order petroleum fractions by chain length and position
  • link fuel properties and complete combustion products to methane and other hydrocarbons

Covered syllabus points

11.3.1—Fossil fuels: coal, natural gas and11.3.2—Methane as the main constituent of11.3.3—Hydrocarbons are compounds that11.3.4—Petroleum is a mixture of hydrocarbons11.3.5—Separation of petroleum into useful11.3.6—Petroleum fraction trends up the11.3.7—Fraction uses: refinery gas for

11.3 Fuels question 1

[Maximum number: 1]

State one gas which:

is the main constituent of natural gas

11.3 Fuels question 2

[Maximum number: 2]

The table shows the structures of four hydrocarbons.

Table for Question 11.3 Fuels question 2 — CAIE IGCSE Chemistry

Why are compounds P, Q, R and S known as hydrocarbons?

11.3 Fuels question 3

[Maximum number: 1]

Petroleum is an important fossil fuel.
Which row correctly describes petroleum?

type of substance

composition

compound

mainly hydrocarbons

compound

only hydrogen and carbon

mixture

mainly hydrocarbons

mixture

only hydrogen and carbon

All question bank results loaded