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  4. In the reaction, 3Cl2 + 6 NaOH arrow NaClO3 + 5 NaCl + 3 H2O the element which loses as well as gains electrons is

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Q. In the reaction, $3Cl_2 + 6 NaOH \rightarrow NaClO_3 + 5 NaCl + 3 H_2O $ the element which loses as well as gains electrons is

Redox Reactions

Solution:

$\overset{0}{C}l _2+6 NaOH \longrightarrow Na\overset{+5}{Cl}O _3+5 Na\overset{-1}{Cl} + 3 H _2 O$
Here, O.N. of $Cl$ increases from $O$ in $Cl _2$ to $+5$ in $NaClO _3$ and decreases to $-1$ in $NaCl$, therefore, $Cl$ gets both oxidised and reduced.