Which of the following of metals, when coupled, will give maximum EMF for a voltaic cell?Given:Au+(aq)+e−→Au(s); E0=1.69 VCu2+(aq)+2e−→Cu(s); E0=0.34 VPb2+(aq)+2e−→Pb(s); E0=−0.13 VFe2+(aq)+2e−→Fe(s); E0=−0.44 VCa2+(aq)+2e−→Ca(s); E0=−2.87 V

Which of the following of metals, when coupled, will give maximum EMF

1.	Which of the following of metals, when coupled, will give maximum EMF for a voltaic cell?Given:Au+(aq)+e−→Au(s); E0=1.69 VCu2+(aq)+2e−→Cu(s); E0=0.34 VPb2+(aq)+2e−→Pb(s); E0=−0.13 VFe2+(aq)+2e−→Fe(s); E0=−0.44 VCa2+(aq)+2e−→Ca(s); E0=−2.87 V
Answer» Which of the following of metals, when coupled, will give maximum EMF for a voltaic cell? Given: $A u^{+} (a q) + e^{-} \to A u (s); E^{0} = 1.69 V$ $C u^{2 +} (a q) + 2 e^{-} \to C u (s); E^{0} = 0.34 V$ $P b^{2 +} (a q) + 2 e^{-} \to P b (s); E^{0} = - 0.13 V$ $F e^{2 +} (a q) + 2 e^{-} \to F e (s); E^{0} = - 0.44 V$ $C a^{2 +} (a q) + 2 e^{-} \to C a (s); E^{0} = - 2.87 V$