Question

Given:
Mn2+(aq) + 2e- Mn(s); = -1.18 V
Cu2+(aq) + 2e- Cu(s); = 0.34 V
Cr2O72-(aq) + 14H+(aq) + 6e" 2Cr3+(aq) + 7H2O(l); =1.33V
Which of the following species is the strongest reducing agent?
A) Mn
B) Cu
C) Cr3+
D) Mn2+
E) Cr2O72-

Answer

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