The correct order of reduction potentials of the following pairs is | Label | Half-cell | |---|---| | A | Cl2/Cl- | | B…
Electrochemistry · Class 12 · JEE Main Previous Year Question
The correct order of reduction potentials of the following pairs is
| Label | Half-cell | |---|---| | A | | | B | | | C | | | D | | | E | |
Choose the correct answer from the options given below.
- a
A > B > C > E > D
- b
A > C > B > E > D
- c
A > B > C > D > E
- d✓
A > C > B > D > E
A > C > B > D > E
Strategy: Reduction potential () values reflect the electrochemical series. Non-metals and noble metals have high positive potentials, while active metals (like Group 1) have highly negative potentials.
Step 1: Recall standard values
- : (A)
- : (C)
- : (B)
- : (D)
- : (E)
Step 2: Compare and Order Higher values are: . Lowest values (active metals): . Full order: A > C > B > D > E.
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