A diagram of an electrochemical cell is shown below - VCE - SSCE Chemistry - Question 3 - 2020 - Paper 1
Question 3
A diagram of an electrochemical cell is shown below.
A diagram of an electrochemical cell is shown below.
Which of the following gives the correct combination of t... show full transcript
Worked Solution & Example Answer:A diagram of an electrochemical cell is shown below - VCE - SSCE Chemistry - Question 3 - 2020 - Paper 1
Step 1
Electrode (oxidation half-cell)
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Answer
In an electrochemical cell, the oxidation occurs at the anode. In this diagram, S is connected to the oxidation half-cell.
Step 2
Electrolyte (reduction half-cell)
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Answer
The reduction occurs at the cathode, which in this case corresponds to the electrolyte R in the reduction half-cell. Therefore, the pair is Q (anode) and P (cathode).
Step 3
Final Answer
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Answer
The correct combination is D: Q for the oxidation half-cell and P for the reduction half-cell.