Answer to Question #281531 in Inorganic Chemistry for hkj

Question

 ClO₃ ^- (aq) + I^- (aq)  I₂ (s) + Cl^- (aq)  [acidic]

Answer 1

In acidic medium,

ClO₃^-  + 6H⁺ +6e                  Cl^-  + 3H₂O           ……..(iii)

2I^-  - 2e                      I₂      (iv)

Multiplying eqn. iii with 1 and eqn iv with 3 and then adding we get

ClO₃^-  + 6H⁺ + 6I^-                   3I₂  + Cl^-  + 3H₂O