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GCSE Chemistry · key term
An electrode that conducts electricity without taking part in the electrode reactions.
Used by AQA, Edexcel and OCR
Specification 4.4.3.2, 4.4.3.4 · Paper 1
An electrode that conducts electricity without reacting with the electrolyte or products.
Revise: Electrolysis of Molten CompoundsTwo inert electrodes are placed in the molten compound and connected to the supply. The negative electrode is the cathode; it attracts positive metal ions. These ions gain electrons and become metal atoms.
Specification 3.25, 3.31 · Paper 1
An electrode that conducts electricity without taking part in the electrode reactions, such as graphite or platinum.
An electrode that conducts electricity but does not itself take part in the electrode reactions.
An electrode, such as graphite, that conducts electricity without being used up in the electrode reactions.
Specification C3.4a, C3.4c, C3.4e, PAG 2 · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
An electrode that conducts electricity without taking part in the electrode reactions under the conditions used.
Revise: Electrode ProductsAn inert electrode, commonly graphite, conducts electricity but does not itself take part in the reactions.
An electrode that conducts electricity without normally taking part in the electrode reactions, such as a carbon electrode.
A conducting electrode that does not take part in the electrode reaction; graphite is a common example.
An electrode, such as graphite, that conducts electricity without being intended as a reactant in the cell.
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
An electrode that conducts electricity without taking part in the overall chemical reaction, such as a graphite electrode in many school examples.
An electrode that conducts electricity without itself taking part in the intended electrode reactions, such as a carbon rod.
When the question specifies inert electrodes, do not include the electrode material as a reactant or product.
Remember that an inert electrode conducts electricity but does not supply the product.
In an apparatus description, identify the aqueous salt solution, two separate inert electrodes and the positive and negative connections to a low-voltage power supply.
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