Chemistry 0620 · IGCSE · Corrosion of metals

Corrosion of metals — practice question

The diagram illustrates an experiment used to investigate the corrosion of iron. What change occurs to the water level in tubes P and Q?

  • ATube P rises; tube Q falls
  • BTube P no change; tube Q rises
  • CTube P falls; tube Q rises
  • DTube P no change; tube Q no change

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