Refer to the following abbreviated standard reduciton


Refer to the following abbreviated standard reduciton potential table. Which one is the of the following reactions would be considered NON=SPONTANEOUS?

Al^3- + 3e^- aAl -166 V

Zn^2+ + 2e^- a Zn -0.76 V

Pb^2+ + 2e^- a Pb - 0.13 V

2H^+ + 2e^- a Hsub2 0.00 V

Cu^2+ + 2e^- a Cu+0.34 V

Ag+ +e-a Ag+0.80 V

a. 2 Ag^+ + Cu --> 2 Ag + Cu^2+

b. 2 H^+ + Pb --> 2H + Pb^2+

c. 3 Zn^2+ + 2Al --> 3Zn^+ 2Al^3+

d. Hsub2 + Zn^2+ --> Zn + 2H^+

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Chemistry: Refer to the following abbreviated standard reduciton
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