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Write the following redox reactions using half equations. (i) \[Zn(s)+PbC{{l}_{2}}(aq)\xrightarrow{\,}\,Pb(s)+ZnC{{l}_{2}}(aq)\] (ii)\[2F{{e}^{3+}}(aq)+2{{I}^{-}}(aq)\,\xrightarrow{\,}\,{{I}_{2}}(s)+2F{{e}^{2+}}(aq)\] (iii) \[2Na(s)+C{{l}_{2}}(g)\xrightarrow{\,}\,2NaCl\,(s)\] (iv)\[Mg(s)+C{{l}_{2}}(g)\xrightarrow{\,}\,MgC{{l}_{2}}(s)\] (v) \[Zn(s)+2{{H}^{+}}(aq)\xrightarrow{{}}\,Z{{n}^{2+}}(aq)+{{H}_{2}}(g)\] In each of the reactions given above, mention (a) which reactant is oxidized? To what? (b) which reactant is the oxidiser? (c) which reactant is reduced? To what? (d) which reactant is the reducer?

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