Sn²(aq) + pb(s) + ₂ cl⁻(aq) < --> sn(s) + pbcl₂(s)

Standard Reduction Potentials in Aqueous Solution at 25oCAcidic SolutionEo (V)F2(g) + 2 e–    2 F–(aq)+2.87Co3+(aq) + e–    Co2+(aq)+1.82Pb4+(aq) + 2 e–    Pb2+(aq)+1.8H2O2(aq) + 2 H+(aq) + 2 e–    2 H2O+1.77NiO2(s) + 4 H+(aq) + 2 e–    Ni2+ (aq) + 2 H2O+1.7PbO2(s) + SO42–(aq) + 4 H+(aq) + 2 e–    PbSO4(s) + 2 H2O+1.685Au+(aq) + e–    Au(s)+1.682 HClO(aq) + 2 H+(aq) + 2 e–    Cl2(g) + 2 H2O+1.63Ce4+(aq) + e–    Ce3+(aq)+1.61NaBiO3(s) + 6 H+(aq) + 2 e–    Bi3+(aq) + Na+(aq) + 3 H2O+~1.6MnO4–(aq) + 8 H+(aq) + 5 e–    Mn2+(aq) + 4 H2O+1.51Au3+(aq) + 3 e–    Au(s)+1.5ClO3–(aq) + 6 H+(aq) + 5 e–    1/2 Cl2(g) + 3 H2O+1.47BrO3– + 6 H+(aq) + 6 e–    Br–(aq) + 3 H2O+1.44Cl2(g) + 2 e–    2 Cl–(aq)+1.358Cr2O72– + 14 H+(aq) + 6 e–    2 Cr3+(aq) + 7 H2O+1.33N2H5+(aq) + 3 H+(aq) + 2 e–    2 NH4+(aq)+1.24MnO2(s) + 4 H+(aq) + 2 e–    Mn2+(aq) + 2 H2O+1.23O2(g) + 4 H+(aq) + 4 e–    2 H2O+1.229Pt2+(aq) + 2 e–    Pt(s)+1.2IO3–(aq) + 6 H+(aq) + 5 e–    1/2 I2(aq) + 3 H2O+1.195ClO4–(aq) + 2 H+(aq) + 2 e–    ClO3–(aq) + H2O+1.19Br2(l) + 2 e–    2 Br–(aq)+1.066AuCl4– + 3 e–    Au(s) + 4 Cl–(aq)+1Pd2+(aq) + 2 e–    Pd(s)+0.987NO3–(aq) + 4 H+(aq) + 3 e–    NO(g) + 2 H2O+0.96NO3–(aq) + 3 H+(aq) + 2 e–    HNO2(aq) + H2O+0.942 Hg2+(aq) + 2 e–    Hg22+(aq)+0.92Hg2+(aq) + 2 e–    Hg(l)+0.855Ag+(aq) + e–    Ag(s)+0.7994Hg22+(aq) + 2 e–    2 Hg(l)+0.789Fe3+(aq) + e–    Fe2+(aq)+0.771SbCl6–(aq) + 2 e–    SbCl4–(aq) + 2 Cl–(aq)+0.75[PtCl4]2–(aq) + 2 e–    Pt(s) + 4 Cl–(aq)+0.73O2(g) + 2 H+(aq) + 2 e–    H2O2(aq)+0.682[PtCl6]2–(aq) + 2 e–    [PtCl4]2–(aq) + 2 Cl–(aq)+0.68H3AsO4(aq) + 2 H+(aq) + 2 e–    H3AsO3(aq) + H2O+0.58I2(s) + 2 e–    2 I–(aq)+0.535TeO2(s) + 4 H+(aq) + 4 e–    Te(s) + 2 H2O+0.529Cu+(aq) + e–    Cu(s)+0.521[RhCl6]3–(aq) + 3 e–    Rh(s) + 6 Cl–(aq)+0.44Cu2+(aq) + 2 e–    Cu(s)+0.337HgCl2(s) + 2 e–    2 Hg(l) + 2 Cl–(aq)+0.27AgCl(s) + e–    Ag(s) + Cl–(aq)+0.222SO42–(aq) + 4 H+(aq) + 2 e–    SO2(g) + 2 H2O+0.2SO42–(aq) + 4 H+(aq) + 2 e–    H2SO3(g) + H2O+0.17Cu2+(aq) +  e–    Cu+(aq)+0.153Sn4+(aq) + 2 e–    Sn2+(aq)+0.15S(s) + 2 H+(aq) + 2 e–    H2S(aq)+0.14AgBr(s) + e–    Ag(s) + Br–(aq)+0.07132 H+(aq) + 2 e–    H2(g) (reference electrode)0N2O(g) + 6 H+(aq) + H2O + 4 e–    2 NH3OH+(aq)-0.05Pb2+(aq) + 2 e–    Pb(s)-0.126Sn2+(aq) + 2 e–    Sn(s)-0.14AgI(s) + e–    Ag(s) + I–(aq)-0.15[SnF6]2–(aq) + 4 e–    Sn(s) + 6 F–(aq)-0.25Ni2+(aq) + 2 e–    Ni(s)-0.25Co2+(aq) + 2 e–    Co(s)-0.28Tl+(aq) + e–    Tl(s)-0.34PbSO4(s) + 2 e–    Pb(s) + SO42–(aq)-0.356Se(s) + 2 H+(aq) + 2 e–    H2Se(aq)-0.4Cd2+(aq) + 2 e–    Cd(s)-0.403Cr3+(aq) + e–    Cr2+(aq)-0.41Fe2+(aq) + 2 e–    Fe(s)-0.442 CO2(g) + 2 H+(aq) + 2 e–    (COOH)2(aq)-0.49Ga3+(aq) + 3 e–    Ga(s)-0.53HgS(s) + 2 H+(aq) + 2 e–    Hg(l) + H2S(g)-0.72Cr3+(aq) + 3 e–    Cr(s)-0.74Zn2+(aq) + 2 e–    Zn(s)-0.7632H2O(l) + 2 e–    H2(g) + 2OH-(aq)-0.8277Cr2+(aq) + 2 e–    Cr(s)-0.91Mn2+(aq) + 2 e–    Mn(s)-1.18V2+(aq) + 2 e–    V(s)-1.18Zr4+(aq) + 4 e–    Zr(s)-1.53Al3+(aq) + 3 e–    Al(s)-1.66H2(g) + 2 e–    2 H–(aq)-2.25Mg2+(aq) + 2 e–    Mg(s)-2.37Na+(aq) + e–    Na(s)-2.714Ca2+(aq) + 2 e–    Ca(s)-2.87Sr2+(aq) + 2 e–    Sr(s)-2.89Ba2+(aq) + 2 e–    Ba(s)-2.9Rb+(aq) + e–    Rb(s)-2.925K+(aq) + e–    K(s)-2.925Li+(aq) + e–    Li(s)-3.045Basic Solution ClO–(aq) + H2O + 2 e–    Cl–(aq) + 2 OH–(aq)0.89OOH–(aq) + H2O + 2 e–    3 OH–(aq)0.882 NH2OH(aq) + 2 e–    N2H4(aq) + 2 OH–(aq)0.74ClO3– (aq) + 3 H2O + 6 e–    Cl–(aq) + 6 OH–(aq)0.62MnO4–(aq) + 2 H2O + 3 e–    MnO2(s) + 4 OH–(aq)0.588MnO4–(aq) + e–    MnO42–(aq)0.564NiO2(s) + 2 H2O + 2 e-    Ni(OH)2(s) + 2 OH–(aq)0.49Ag2CrO4(s) + 2 e–    2 Ag(s) + CrO42–(aq)0.446O2(g) + 2 H2O + 4 e–    4 OH–(aq)0.4ClO4–(aq) + H2O + 2e–    ClO3–(aq) + 2 OH–(aq)0.36Ag2O(s) + H2O + 2e–    2 Ag(s) + 2 OH–(aq)0.342 NO2–(aq) + 3 H2O + 4 e–    N2O(g) + 6 OH–(aq)0.15N2H4(aq) + 2 H2O + 2 e–    2 NH3(aq) + 2 OH–(aq)0.1[Co(NH3)6]3+(aq) + e–    [Co(NH3)6]2+(aq)0.1HgO(s) + H2O + 2e–    Hg(l) + 2 OH–(aq)0.0984O2(g) + H2O + 2 e–    OOH–(aq) + OH–(aq)0.076NO3–(aq) + H2O + 2 e–    NO2–(aq) + 2 OH–(aq)0.01MnO2(s) + 2 H2O + 2 e–    Mn(OH)2(s) + 2 OH–(aq)-0.05CrO42–(aq) + 4 H2O + 3 e–    Cr(OH)3(s) + 5 OH–(aq)-0.12Cu(OH)2(s) + 2 e–    Cu(s) + 2 OH–(aq)-0.36Fe(OH)3(s) + e–    Fe(OH)2(s) + OH–(aq)-0.562 H2O + 2 e–    H2(g) + 2 OH–(aq)-0.82772 NO3–(aq) + 2 H2O + 2 e–    N2O4(g) + 4 OH–(aq)-0.85Fe(OH)2(s) + 2 e–    Fe(s) + 2 OH–(aq)-0.877SO42–(aq) + H2O + 2 e–    SO32–(aq) + 2 OH–(aq)-0.93N2(g) + 4 H2O + 4 e–    N2H4(aq) + 4 OH–(aq)-1.15[Zn(OH)4]2–(aq) + 2 e–    Zn(s) + 4 OH–(aq)-1.22Zn(OH)2(s) + 2 e–    Zn(s) + 2 OH–(aq)-1.245[Zn(CN)4]2–(aq) + 2 e–    Zn(s) + 4 CN–(aq)-1.26Cr(OH)3(s) + 3 e–    Cr(s) + 3 OH–(aq)-1.3SiO32–(aq) + 3 H2O + 4 e–    Si(s) + 6 OH–(aq)-1.7
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The answer is b on plato.