O Level · Chemistry · Medium level · 7 questions
States of Matter: Medium 1
The particle model, diffusion, purity and the separation techniques, the practical-paper section, where knowing why a method works is the difference between a description and an explanation. This quiz is a step up: the questions ask you to use the ideas as well as recognise them. 7 questions (multiple choice), marked the moment you finish, with the reason for every answer.
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Your score is saved against States of Matter, so you can see which topics are solid and which need another go.