6 (a) A metal spoon is plated with silver using electrolysis - Edexcel - GCSE Chemistry - Question 6 - 2017 - Paper 1
Question 6
6 (a) A metal spoon is plated with silver using electrolysis. The diagram shows the apparatus used.
In this electrolysis, oxidation occurs at the silver electrode.
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Worked Solution & Example Answer:6 (a) A metal spoon is plated with silver using electrolysis - Edexcel - GCSE Chemistry - Question 6 - 2017 - Paper 1
Step 1
State, in terms of electrons, what is meant by oxidation.
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Answer
Oxidation is defined as the loss of electrons. In electrolysis, when a substance loses electrons, it is said to be oxidized. This process increases the oxidation state of the substance.
Step 2
Which is the formula of silver nitrate?
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Answer
The formula for silver nitrate is AgNO₃. This choice is often represented in options as B, which indicates that it is the correct answer.
