Chemistry · Electrochemistry
Consider the following standard reduction processes: Al3+ + 3e- → Al(s), E° = -1.66 V Fe3+ + e- → Fe2+, E° = +0.77 V Co3+ + e- → Co2+, E° = +1.81 V Cr3+ + 3e- → Cr(s), E° = -0.74 V The tendency of the respective species to act as a reducing agent decreases in the order:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Al > Cr > Fe2+ > Co2+✓
- 2Al > Fe2+ > Cr > Co2+
- 3Al > Cr > Co2+ > Fe2+
- 4Cr > Fe2+ > Al > Co2+
Correct answer
Al > Cr > Fe2+ > Co2+
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