How does the flammability of a hydrocarbon change as its molecules get larger?
The flammability decreases as the molecules get larger.
The flammability increases as the molecules get larger.
The flammability stays the same as the molecules get larger.
The flammability increases, then falls, as molecules get larger.
40 exam-style questions on AQA GCSE Chemistry 7.1 Carbon compounds as fuels and feedstock, covering 7.1.1 Crude oil, hydrocarbons and alkanes, 7.1.2 Fractional distillation and petrochemicals, 7.1.3 Properties of hydrocarbons, and 7.1.4 Cracking and alkenes. Each one has a worked solution and a mark scheme showing where the marks go.