Which of the following reaction will provide maximum voltage?Given:Zn2 – InterviewSolution

1.	Which of the following reaction will provide maximum voltage?Given:Zn2+(aq)+2e−→Zn(s); E0=−0.76 VCu2+(aq)+2e−→Cu(s); E0=0.34 VAg+(aq)+e−→Ag(s); E0=0.80 V2H+(aq)+2e−→H2(g); E0=0 VNi2+(aq)+2e−→Ni(s); E0=−0.25 V
Answer» Which of the following reaction will provide maximum voltage? Given: $Z n^{2 +} (a q) + 2 e^{-} \to Z n (s); E^{0} = - 0.76 V$ $C u^{2 +} (a q) + 2 e^{-} \to C u (s); E^{0} = 0.34 V$ $A g^{+} (a q) + e^{-} \to A g (s); E^{0} = 0.80 V$ $2 H^{+} (a q) + 2 e^{-} \to H_{2} (g); E^{0} = 0 V$ $N i^{2 +} (a q) + 2 e^{-} \to N i (s); E^{0} = - 0.25 V$

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