Alkenes (OCR GCSE Chemistry A (Gateway Science Suite)): Quizzes

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Alkenes
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What elements make up alkenes?

Only carbon and hydrogen

What type of hydrocarbons are alkenes?

Unsaturated

How can alkenes be identified by their name?

They end with 'ene'

What type of bond do all alkenes contain?

Carbon-to-carbon double bonds (C=C)

What is the general formula for alkenes?

CnH2nC_nH_{2n}

An alkene has 4 carbon atoms. What is its molecular formula using CnH2nC_nH_{2n}?

C4H8C_4H_8

What is the molecular formula of ethene?

C2H4C_2H_4

What is the molecular formula of propene?

C3H6C_3H_6

How many carbon atoms does ethene contain?

2

How do alkenes compare to alkanes in terms of reactivity?

Alkenes are more reactive than alkanes

What is the functional group of alkenes?

The double bond

How many fewer H atoms do alkenes have compared to corresponding alkanes?

Two fewer

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Hydrocarbons: Fuel & Feedstock

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Hydrocarbons: Fuel & Feedstock

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Explore OCR GCSE Chemistry A (Gateway Science Suite) Exam Questions by Topics

Hydrocarbons: Fuel & Feedstock

Reactions of Alkenes & Alcohols

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