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REDOX REACTIONS AND ELECTROCHEMISTRY
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Question
Which of the following reductions occurs in acidic medium?
A. Zn2+ + 2e– → Zn(s)
B. 2H2O + 2e– → H2(g) + 2OH–
C. NO3– + 4H+ + 3e– → NO(g) + 2H2O
D. Na+ + e– → Na(s)
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