Class 12 Chemistry · Chapter 2 · Test 5
Transition Metal Redox
37 MCQs
37 questions · 30 min · 37 marks
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Sample questions
The first 5 of 37. Try each one, then tap to see the answer.
Question 1
A redox reaction is feasible when the overall standard cell potential is:
- APositive
- BNegative
- CZero
- DExactly 1.00 V
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Answer: A
A positive E0cell indicates a feasible reaction.
Question 2
In a feasible reaction the species with the more positive E0 value is:
- AOxidised
- BReduced
- CUnchanged
- DPrecipitated
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Answer: B
The more positive E0 couple is reduced.
Question 3
The species with the less positive (more negative) E0 value is:
- AReduced
- BUnchanged
- COxidised
- DA catalyst
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Answer: C
It loses electrons and is oxidised.
Question 4
E0cell is calculated as:
- AE0 of oxidised half-cell minus E0 of reduced half-cell
- BE0 of reduction plus E0 of oxidation
- CE0 of reduction multiplied by E0 of oxidation
- DE0 of the half-cell reduced minus E0 of the half-cell oxidised
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Answer: D
E0cell = E0(reduced couple) - E0(oxidised couple).
Question 5
In the reaction of acidified MnO4- with C2O4 2- the oxidising agent is:
- AMnO4-
- BC2O4 2-
- CH+
- DCO2
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Answer: A
MnO4- is reduced to Mn2+.
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