Write balanced chemical equation for the following reactions:
(i) Permanganate ion reacts with sulphur dioxide gas in acidic medium to produce and hydrogensulphate ion.
(Balance by ion electron method)
(ii) Reaction of liquid hydrazine with chlorate ion in basic medium produces nitric oxide gas and chloride ion in gaseous state.
(Balance by oxidation number method)
(iii) Dichlorine heptaoxide in gaseous state combines with an aqueous solution of hydrogen peroxide in acidic medium to give chlorite ion and oxygen gas.
(Balance by ion electron method)