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From the given data we find Fe3+ (E°Fe3+/Fe2+ = +0.77V) is strongest oxidizing agent.

1. Fe3+ is strongest oxidizing agent.
2. Fe2+ is strongest oxidizing agent.
3. Fe3+ is weakest oxidizing agent.
4. Fe2+ is weakest oxidizing agent.

Correct answer: Fe3+ is strongest oxidizing agent.

Solution

The standard reduction potential (E°) of Fe3+/Fe2+ is +0.77V, indicating that Fe3+ has a strong tendency to gain electrons and get reduced, making it the strongest oxidizing agent among the options.

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