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Course: Edexcel Igcse Chemistry Modular — UNIT 1
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Edexcel Igcse Chemistry Modular — UNIT 1

Unit 1 · Principles of Chemistry

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Unit 1 · Inorganic Chemistry

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Unit 1 · Physical & Organic Chemistry

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Quiz

Elements, compounds & mixtures – Check yourself

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Elements, compounds & mixtures Edexcel O Level Modular Chemistry check yourself quiz: free practice for Edexcel Modular – OL (chemistry). Work through this Elements, compounds & mixtures Edexcel O Level Modular Chemistry check yourself quiz and get instant feedback on every answer. If you get stuck, review the 1b Elements, compounds and mixtures — Notes lesson. More practice: Edexcel Modular – OL (chemistry) — all units. Syllabus: Pearson Edexcel International GCSEs.

  • Questions count: 5
  • Passing grade: B+
  • Time limit: 10 minutes
Start Quiz
1.
Which of these is a compound?
Air
Carbon dioxide
Oxygen
Sea water
2.
A sample melts over a range from 75 °C to 79 °C. This suggests it is:
a pure element
a pure compound
a mixture
a gas
3.
Which method gives pure water from salt water?
Filtration
Crystallisation
Chromatography
Simple distillation
4.
Which statement best describes Pure substance?
A substance made of two or more different elements chemically bonded together in fixed proportions.
Separating a liquid from a solution by boiling it off and condensing the vapour elsewhere.
Separating miscible liquids with different boiling points using a fractionating column.
A single element or a single compound with nothing else mixed in; it melts and boils at one sharp, fixed temperature.
5.
Which statement best describes Filtration?
Two or more substances that are together in the same place but not chemically joined, so they can be separated physically.
A substance made of two or more different elements chemically bonded together in fixed proportions.
Separating an insoluble solid from a liquid by passing the mixture through filter paper.
Distance moved by a spot divided by distance moved by the solvent front; always between 0 and 1.
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Part of Unit 1 · Principles of Chemistry — see every lesson and quiz in this unit.
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