Using the standard reduction potentials of the electrodes $\mathrm{Li}, \mathrm{Zn}, \mathrm{Mg},…

Using the standard reduction potentials of the electrodes $\mathrm{Li}, \mathrm{Zn}, \mathrm{Mg}, \mathrm{Ni}$ as $-3.05,-0.76$, $-2.36,-0.25 \mathrm{~V}$ respectively, identify the correct statement.
  1. $\mathrm{Mg}$, displaces $\mathrm{Zn}$ from its solution.
  2. $\mathrm{Ni}$, reduces $\mathrm{Zn}^{2+}$ to $\mathrm{Zn}$
  3. $\mathrm{Mg}$, reduces $\mathrm{Li}^{+}$to $\mathrm{Li}$
  4. $\mathrm{Zn}$, reduces $\mathrm{Mg}^{2+}$ to $\mathrm{Mg}$

Solution

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Asked in: AP EAMCET 2017 (25 Apr Shift 1)

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