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Back to OCR Gateway Chemistry Paper 1 Specimen (set 1) Home

Paper 1 H - SAMPLE SET 1 Q20

20) A student is separating a mixture of three substances, A, B and C.
​Look at the table. It gives information about these substances.
Picture
A and B mix together completely.

(a)* Suggest how the student can separate the mixture to get pure samples of substances A, B and C.
Explain in detail how each method works. [6]

(b) The student has separated a pure sample of substance B from the mixture.
Suggest how the student can check that the sample of substance B is pure. [2]

​​​​(Total for Question 20 = 8 marks)
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