Question

Which one of the following is not feasible

विकल्प

• \[\ce{Zn_{(s)} + Cu^{2+}_{ (aq)} -> Cu_{(s)} + Zn^{2+}_{ (aq)}}\]

• \[\ce{Cu_{(s)} + Zn^{2+}_{ (aq)} -> Zn_{(s)} + Cu^{2+}_{ (aq)}}\]

• \[\ce{Cu_{(s)} + 2Ag^+_{ (aq)} -> 2Ag_{(s)} + Cu^{2+}_{ (aq)}}\]

• \[\ce{Fe_{(s)} + Cu^2_{ (aq)} -> Cu_{(s)} + Fe^{2+}_{ (aq)}}\]

Answer 1

\[\ce{Cu_{(s)} + Zn^{2+}_{ (aq)} -> Zn_{(s)} + Cu^{2+}_{ (aq)}}\]