O LevelChemistryCambridge (CIE)Exam Questions2. Atoms, Elements & Compounds2.1 Elements, Compounds & Mixtures

Elements, Compounds & Mixtures (Cambridge (CIE) O Level Chemistry): Multiple Choice Questions

Exam code: 5070

26 mins5 questions

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2.1 Elements, Compounds & Mixtures

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1
1 mark

Substances can be broadly classified into three categories which are elements, compounds and mixtures.

Which of the following statements is correct?

  • Elements contain different atoms

  • Compounds consist of elements that are not chemically combined

  • Mixtures consist of elements that are chemically combined

  • A mixture can contain elements and compounds

Choose your answer

1
1 mark

Which diagram shows the arrangement of particles inside a balloon containing a mixture of the gases nitrogen and oxygen?

Four balloon outlines labelled A to D, each drawn with particles inside. A key shows a filled circle as a nitrogen atom and an open circle as an oxygen atom. Balloon A contains separate single circles, both filled and open, none of them joined. Balloon B contains pairs of two filled circles gathered in the upper half and pairs of two open circles gathered in the lower half. Balloon C contains pairs of two filled circles and pairs of two open circles spread throughout. Balloon D contains pairs each made of one filled circle joined to one open circle.

    Choose your answer