QJEEAdv14Ch8490: JEE Advanced 2014 Chemistry - Class 11 JEEAdv14Ch8490 Solution: For the reaction, the correct statement(s) in the balanced…

Oxidation half-reaction,

$2{I^ - } \to {I_2} + 2{e^ - }$ .... (i)

Here, I ^$-$ is converted into I₂. Oxidation number of I is increasing from $-$ 1 to 0 hence, this is a type of oxidation reaction.

Reduction half-reaction

$6{H^ + } + ClO_3^ - + 6{e^ - } \to C{l^ - } + 3{H_2}O$ ..... (ii)

Here, H₂O releases as a product. Hence, option (d) is correct.

Multiplying equation (i) by 3 and adding in equation (ii)


Stoichiometric coefficient of $HSO_4^ -$ is 6.

Hence, option (a), (b) and (d) are correct.