Which one is correct? (1) Ni displaces zinc from its solution (2) \( \mathrm{Zn} \) displaces ir...

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Which one is correct?
(1) Ni displaces zinc from its solution
(2) \( \mathrm{Zn} \) displaces iron from its solution
(3) Ag displaces copper from its solution
(4) \( \mathrm{Cu} \) displaces nickel from its solution
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