Combined Science: Trilogy 8464: C7.Organic Chemistry Topical Past Paper Questions
AQA GCSE Combined Science: Trilogy (8464) past-paper questions on C7.Organic Chemistry, free. This topic is frequently examined across 7 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
Alkanes and alkenes are hydrocarbons. 1 Define the term 'hydrocarbon'. [1 mark] 2 The general formula for alkanes is $ C_{n}H_{2n+2} $ Determine the formula of the alkane with 10 carbon atoms. [1 mark] Formula = ___ Crude oil is a mixture of hydrocarbons. Figure 1 represents indu…
Crude oil is a mixture of many different compounds. 1 Give two reasons why crude oil is not a formulation. [2 marks] 1 2 2 Describe how crude oil is separated into fractions. [4 marks] 3 The fractions from crude oil contain alkanes. Explain why alkanes are cracked. [2 marks] Crac…
This question is about the Earth's atmosphere and the Earth's resources. 1 After the formation of the Earth's early atmosphere, the amounts of nitrogen and oxygen in the atmosphere changed. Explain the main changes in the amounts of nitrogen and oxygen in the Earth's atmosphere.…
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