A science centre is preparing a particle model for an exhibit about the family containing most of the hydrocarbons in crude oil. The available models represent methane, an alkene, carbon dioxide and a polymer.
Which statement about the model choice is correct?
The methane model should be used because methane belongs to the alkane family.
The polymer model should be used because polymers are a major hydrocarbon family in crude oil.
The carbon dioxide model should be used because every carbon compound is a hydrocarbon.
The alkene model should be used because cracking produces alkenes from crude oil.
91 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.