The discharge reaction in a vanadium redox battery is represented by the following equation - VCE - SSCE Chemistry - Question 14 - 2022 - Paper 1
Question 14
The discharge reaction in a vanadium redox battery is represented by the following equation.
\[ VO_2^{+}(aq) + 2H^{+}(aq) + V^{2+}(aq) \rightarrow V^{3+}(aq) + VO_2... show full transcript
Worked Solution & Example Answer:The discharge reaction in a vanadium redox battery is represented by the following equation - VCE - SSCE Chemistry - Question 14 - 2022 - Paper 1
Step 1
A. H<sup>+</sup> is the reducing agent.
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Answer
In redox reactions, the reducing agent is the species that donates electrons and gets oxidized. H<sup>+</sup> does not fit this description.
Step 2
B. H<sub>2</sub>O is the oxidising agent.
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Water is not typically considered an oxidising agent in this context as it does not contribute to electron transfer.
Step 3
C. VO<sub>2</sub><sup>+</sup> is the reducing agent.
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VO<sub>2</sub><sup>+</sup> acts as an oxidizing agent during discharge; thus, this statement is incorrect.
Step 4
D. VO<sub>2</sub><sup>+</sup> is the oxidising agent.
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Answer
This statement is correct. During the discharge process, VO<sub>2</sub><sup>+</sup> accepts electrons and gets reduced, making it an oxidising agent.
