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5.2 Controlling reactions

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Question 13
F

A cube of a reactive solid has sides of 4 cm. It is cut into smaller cubes, each with sides of 1 cm. No solid is lost.

By what factor does the surface area to volume ratio of the solid increase?

[1]
A

2

B

4

C

16

D

64

Markscheme

5.2 Controlling reactions Questions

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

122 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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