Using E° values of X and Y given below, predict which is better for coating the surface of Iron to prevent corrosion and why? Given: E°(X²⁺/X) = -2.36 V, E°(Y²⁺/Y) = -0.14 V, E°(Fe²⁺/Fe) = -0.44 V

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TextElectrochemical Basis of Corrosion Prevention Using Standard Electrode PotentialsCBSE PYQ

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Tarnished silver contains Ag₂S. Can this tarnish be removed by placing tarnished silverware in an aluminium pan containing an inert electrolytic solution such as NaCl? The standard electrode potential for half reaction : Ag₂S(s) + 2e⁻ → 2Ag(s) + S²⁻ is –0.71 V and for Al³⁺ + 3e⁻ → 2Al(s) is –1.66 V.

TextStandard Electrode PotentialElectrochemical Basis of Corrosion Prevention Using Standard Electrode Potentials

Iron is protected from rusting by coating it with zinc (galvanisation) because zinc

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