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5.2 Chemical cells and fuel cells

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Question 18

A designer tests simple cells for a low-power digital thermometer. The cells are made under the same conditions.

CellElectrodesElectrolyteVoltage in V
1magnesium and copperX1.8
2zinc and copperX1.1
3magnesium and copperY1.5
4zinc and copperY0.9

Which statement is a valid conclusion from these results?

[1]
A

Cells 1 and 2 show that changing the electrolyte changes the voltage

B

Cells 1 and 4 show that changing the electrolyte changes the voltage

C

Cells 2 and 3 show that changing the metals changes the voltage

D

Cells 1 and 3 show that changing the electrolyte changes the voltage

Markscheme

5.2 Chemical cells and fuel cells Questions

  1. GCSE
  2. /Chemistry
  3. /5.2 Chemical cells and fuel cells

90 exam-style questions on AQA GCSE Chemistry 5.2 Chemical cells and fuel cells, covering 5.2.1 Cells and batteries, 5.2.2a Fuel cells, and 5.2.2b Half equations for hydrogen fuel cells. Each one has a worked solution and a mark scheme showing where the marks go.

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