Carbon Compounds Quiz
Test your knowledge of Carbon Compounds, as part of GCSE Chemistry with this quiz.
This quiz consists of 15 questions, including multiple-choice and short-answer questions on the topic of Carbon Compounds for GCSE Chemistry.
For multiple-choice questions, choose the correct answer. Scroll down to begin the quiz.
Questions
What is crude oil primarily composed of?
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What is the main process used to separate crude oil into useful fractions?
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Which fraction of crude oil is used as fuel for aeroplanes?
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What are the two main products of cracking?
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Which type of polymer is made from many small alkene molecules joining together?
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What is meant by the term ‘hydrocarbon’?
A hydrocarbon is a compound made up only of carbon and hydrogen atoms.
Why is crude oil considered a finite resource?
Crude oil takes millions of years to form and cannot be replaced on a human timescale, meaning it will eventually run out.
Explain how fractional distillation separates crude oil into different fractions.
Fractional distillation works by heating crude oil so it vaporises. The vapours rise up a fractionating column, cooling at different temperatures. The different fractions condense at different levels according to their boiling points.
What is the difference between an alkane and an alkene?
Alkanes are saturated hydrocarbons containing only single bonds, whereas alkenes are unsaturated hydrocarbons containing at least one carbon-carbon double bond.
Why are alkenes more reactive than alkanes?
Alkenes contain a carbon-carbon double bond, which is more reactive than the single bonds in alkanes because it can easily break and form new bonds.
Give the general formula for alkanes and the general formula for alkenes.
- Alkanes: CₙH₂ₙ₊₂
- Alkenes: CₙH₂ₙ
What is cracking, and why is it important?
Cracking is a process where long-chain hydrocarbons are broken down into shorter, more useful hydrocarbons, including alkenes used to make polymers. It is important because it helps meet the demand for fuels like petrol and produces valuable chemical feedstocks.
What are the two main types of cracking?
The two main types of cracking are catalytic cracking (using a catalyst at high temperature) and steam cracking (using high temperature and steam).
Give two environmental problems associated with plastic waste.
- Plastics take a long time to degrade, leading to pollution.
- They can harm wildlife if ingested or entangle animals.
What is an addition polymer, and how is it formed?
An addition polymer is formed when many small alkene molecules (monomers) join together through addition reactions, breaking their double bonds and forming long chains.
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