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Chemistry · Oct / Nov 2022 · Paper 12 · Question 18

5070Reactivity series

Students proposed four cells to produce electricity in a school laboratory. Which cell would produce the largest voltage in a safe way?

  1. ACu and Zn electrodes in CuSO4(aq)
  2. BCu and Zn electrodes in ZnSO4(aq)
  3. CNa and Cu electrodes in CuSO4(aq)
  4. DMg and Cu electrodes in MgSO4(aq)

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Correct answer: D. Mg and Cu electrodes in MgSO4(aq)

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