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5.2 Controlling reactions

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Question 15
F

In Experiment 1, a student adds excess large marble chips to 50 cm350\,\mathrm{cm^{3}}50cm3 of dilute hydrochloric acid at 20 ∘C20\,^\circ\mathrm{C}20∘C. The student measures the volume of carbon dioxide made.

The graph shows the results of Experiment 1 and four other lines, A, B, C and D.

image

The student repeats the experiment using 100 cm3100\,\mathrm{cm^{3}}100cm3 of the same hydrochloric acid. The marble chips are the same size and are still in excess. Everything else stays the same.

Which line shows the results of this experiment?

[1]
A

Line A

B

Line B

C

Line C

D

Line D

Markscheme

5.2 Controlling reactions Questions

  1. GCSE
  2. /Chemistry
  3. /5.2 Controlling reactions

56 exam-style questions on OCR GCSE Chemistry 5.2 Controlling reactions, covering 5.2.1 Measuring and interpreting rate of reaction, 5.2.2 Factors affecting rate and collision theory, and 5.2.3 Catalysts, activation energy and enzymes. Each one has a worked solution and a mark scheme showing where the marks go.

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