Which is a stronger reducing agent Cr 2- or Fe 2- and why-

The following reactions are involved when Cr2+ and Fe2+ act as reducing agents. Cr2+ Cr3+ Fe2+ Fe3+ The value is −0.41 V and is +0.77 V. This means that ...

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Standard XII

Biology

Redox Reactions

Which is a st...

Question

Which is a stronger reducing agent Cr²⁺ or Fe²⁺ and why?

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Solution

The following reactions are involved when Cr²⁺ and Fe²⁺ act as reducing agents.

Cr²⁺ Cr³⁺Fe²⁺ Fe³⁺

The value is −0.41 V and is +0.77 V. This means that Cr²⁺ can be easily oxidized to Cr³⁺, but Fe²⁺ does not get oxidized to Fe³⁺ easily. Therefore, Cr²⁺ is a better reducing agent that Fe³⁺.

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Which is a stronger reducing agent Cr2+ or Fe2+ and why?

The following reactions are involved when Cr2+ and Fe2+ act as reducing agents. Cr2+ Cr3+ Fe2+ Fe3+ The value is −0.41 V and is +0.77 V. This means that Cr2+ can be easily oxidized to Cr3+, but Fe2+ does not get oxidized to Fe3+ easily. Therefore, Cr2+ is a better reducing agent that Fe3+.

Which is a stronger reducing agent Cr²⁺ or Fe²⁺ and why?