JEE Advanced2014ChemistryRedox ReactionsActual
For the reaction: I - + C l O 3 - + H 2 S O 4 → C l - + H S O 4 - + I 2 The correct statement(s) in the balanced equation is/are:
Options
- AStoichiometric coefficient of H S O 4 - is 6.
- BIodide is oxidized.
- CSulphur is reduced.
- DH 2 O is one of the products.
Correct answer
A. Stoichiometric coefficient of H S O 4 - is 6.
Step-by-step solution
The balanced equation is, C l O 3 - + 6 I - + 6 H 2 S O 4 → 3 I 2 + C l - + 6 H S O 4 - + 3 H 2 O Here, in this reaction, HSO 4 - is in one of the products, and by balancing the reaction, we get its stiochiometric coefficient as 6. Oxidation number of iodine in reactant side is - 1 and it is oxidised to I 2   with   0 oxidation number in product side.