Question
In following reactions, which substance is getting oxidised and which is getting reduced?
(i) $Sn ^{2+}+2 Fe ^{3+} \longrightarrow Sn ^{4+}+ Fe ^{2+}$
(ii) $Zn + Fe ^{2+} \longrightarrow Z n ^{2+}+ Fe$
(iii) $2 Na + C l _2 \longrightarrow 2 NaCl$
(iv) $M g +2 H ^{+} \longrightarrow M g ^{2+}+ H _2$
(i) $Sn ^{2+}+2 Fe ^{3+} \longrightarrow Sn ^{4+}+ Fe ^{2+}$
(ii) $Zn + Fe ^{2+} \longrightarrow Z n ^{2+}+ Fe$
(iii) $2 Na + C l _2 \longrightarrow 2 NaCl$
(iv) $M g +2 H ^{+} \longrightarrow M g ^{2+}+ H _2$