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Back to OCR Gateway Chemistry Paper 2 Specimen (set 1) Home

Paper 2 H - SAMPLE SET 1 Q24

24) Kasia investigates the corrosion of different metals.
She places a small strip of each metal in different samples of air.
She leaves the metals for one week before collecting her results.
​Look at her table of results.
Picture
(a) Suggest, with a reason, one change to the experimental procedure that would improve the quality of the results. [1]

(b) Explain the conclusions that can be made from Kasia’s results. [3]

(​Total for Question 24 = 4 marks)
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