The standard reduction potential at 298 K for the following half cell reaction Zn2+(aq)+2e→Zn(s)E∘=−0.762V Cr3+(aq)+3e→Cr(s)E∘=0.740V 2H+(aq)+2e→H2(g)E∘=0.0V F2(g)+2e→2F−(aq)E∘=2.87V Which of the following is the strongest reducing agent?
A
Zn(s)
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B
Cr(s)
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C
H2(g)
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D
F2(g)
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Solution
The correct option is AZn(s) More negative the value of the reduction potential, higher is the reducing power and hence, stronger is the reducing agent.