For the following electrochemical reaction Sn + 2H+= Sn2+ + H2 if the solution has Sn2+ concentration 10-2 M and pH 5 at 298 K, which of the following is true?
Given: standard reduction potential for Sn2+ + 2e- → Sn is - 0.136 V versus SHE; pH2 = 1 atm
A. Sn undergoes oxidation
B. H+ undergoes reduction
C. Sn2+ undergoes reduction
D. No net reaction
Answer: Option C
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