Question

In the reaction, ${3Cl_2 + 6 NaOH -> NaClO_3 + 5 NaCl + 3 H_2O }$ the element which loses as well as gains electrons is

• A. Na
• B. O
• C. Cl
• D. none of these

Answer 1

Answer: (C)

Cl

Answer 2

{C\overset{\text{0 }}{ { l}}$_2 + 6 NaOH -> Na$\overset{\text{ +5 }}{ {Cl}}$O_3 + 5 Na$\overset{\text{-1}}{ { Cl}} + 3 H_2O} Here, O.N. of Cl increases from 0 in ${Cl_2}$ to + 5 in ${NaClO_3}$ and decreases to - 1 in NaCl, therefore, Cl gets both oxidised and reduced.