In the kinetic study of a reaction between potassium iodate and sodium sulphite, select option with group of statements from the given list that are correct?
I) Concentration of potassium iodate solution kept higher than the concentration of sodium sulphite solution.
II) Nitric acid can be used to provide acidic medium.
III) Hydrogen chloride can be used to provide acidic medium.
IV) Concentration of potassium iodate solution kept lower than the concentration of sodium sulphite solution.
V) Freshly prepared starch solution is used