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GCSE Combined Science (AQA Trilogy) — Chemistry 5.7 Organic chemistry: 49 practice questions

49 original GCSE Combined Science (AQA Trilogy) questions on Chemistry 5.7 Organic chemistry, each with an explanation and its source. Topics: Alkenes and bromine water, Cracking and alkenes, Fractional distillation of crude oil, 5.7.1.1 Crude oil, hydrocarbons and alkanes, 5.7.1.4 Cracking and alkenes, 5.7.1.3 Properties of hydrocarbons, 5.7.1.2 Fractional distillation and petrochemicals, 5.7.1.4 Properties of hydrocarbons, 5.7.1.3 Fractional distillation and petrochemicals, 5.7.1.5 Cracking and alkenes, 5.7.1.2 Structure and formulae of alkanes. One free sample is below; the rest of the questions are available with a paid plan.

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One Chemistry 5.7 Organic chemistry question with explanations

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Q1 5.7 Organic chemistry

A student adds bromine water to a sample of an unsaturated hydrocarbon. What observation is expected if the sample contains an alkene?

  1. Bromine water changes from colourless to orange.
  2. Bromine water changes from orange to colourless.
  3. A blue precipitate forms.
  4. Limewater turns cloudy.
Show the answer and explanation

Answer: B. An alkene reacts with bromine, decolourising orange bromine water.

Sources: AQA · AQA

That's the free sample. The rest of the questions are available with a paid plan.

That's the free sample. The rest is available with a plan.

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Topics in Chemistry 5.7 Organic chemistry

  • Alkenes and bromine water 1
  • Cracking and alkenes 1
  • Fractional distillation of crude oil 1
  • 5.7.1.1 Crude oil, hydrocarbons and alkanes 4
  • 5.7.1.4 Cracking and alkenes 3
  • 5.7.1.3 Properties of hydrocarbons 3
  • 5.7.1.2 Fractional distillation and petrochemicals 4
  • 5.7.1.4 Properties of hydrocarbons 2
  • 5.7.1.3 Fractional distillation and petrochemicals 1
  • 5.7.1.5 Cracking and alkenes 3
  • 5.7.1.2 Structure and formulae of alkanes 1

FAQ

Are these GCSE Combined Science Chemistry 5.7 Organic chemistry questions free?

The sample question on this page is free to read, with the answer and sources. The full set of 49 Chemistry 5.7 Organic chemistry questions is in the paid plans.

Are these the exam body's own questions?

No. Every question is original and written by Sakakikaen Co., Ltd. examplat is not affiliated with or endorsed by the organisation that runs GCSE Combined Science (AQA Trilogy). Check its website for the current syllabus.