Reactivity series and selective discharge
What Reactivity series and selective discharge means in Combined Science GCSE, as defined for AQA.
Definitions of Reactivity series and selective discharge
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Reference: AQA
The relative reactivity of the elements involved determines which ions are discharged, with the less reactive element discharged at the cathode.
Comparing the metal in the solution with hydrogen using the reactivity series decides which ion is discharged at the cathode.
Topics that use Reactivity series and selective discharge
- Electrolysis of aqueous solutions (AQA GCSE)
Related terms
- Anode
- Cathode
- Competing ions in aqueous electrolysis
- Competing ions in aqueous solutions
- Formation of useful by-products
- Hypothesis
- Inert electrodes and electrode products
- Reactivity and ease of discharge
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