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Question
In the reaction, \[\ce{Cu_{(s)} + 2Ag^+_{( aq)} -> Cu^{2+}_{( aq)} + 2Ag_{(s)}}\]; the reduction half-cell reaction:
Options
\[\ce{Cu^{2+} + 2e^- -> Cu}\]
\[\ce{Cu - 2e^- -> Cu^{2+}}\]
\[\ce{Ag^+ + e^- -> Ag}\]
\[\ce{Ag - e^- -> Ag^+}\]
MCQ
Solution
\[\ce{Ag^+ + e^- -> Ag}\]
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Galvanic or Voltaic Cell
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