Categories > electrochemistry > Corrosion and miscellaneous questions > The standard potential at ${{25}^{o}}C$ for the following half reactions are given against them $Z{{n}^{2+}}+2{{e}^{-}}\to Zn,\,{{E}^{0}}=-0.762V$ $M{{g}^{2+}}+2{{e}^{-}}\to Mg,\,{{E}^{0}}=-2.37V$ When zinc dust is added to the solution of $MgC{{l}_{2}}$

electrochemistry

Question: The standard potential at ${{25}^{o}}C$ for the following half reactions are given against them $Z{{n}^{2+}}+2{{e}^{-}}\to Zn,\,{{E}^{0}}=-0.762V$ $M{{g}^{2+}}+2{{e}^{-}}\to Mg,\,{{E}^{0}}=-2.37V$ When zinc dust is added to the solution of $MgC{{l}_{2}}$


1) $ZnC{{l}_{2}}$ is formed
2) Zinc dissolves in the solution
3) No reaction takes place
4) Mg is precipitated
Solution: Explanation: No Explanation
Corrosion and miscellaneous questions

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