Write balanced chemical equation for the following reactions:
(i) Permanganate ion (MnO4 – ) reacts with sulphur dioxide gas in acidic medium to produce Mn2+ and hydrogensulphate ion.
(Balance by ion electron method)
(ii) Reaction of liquid hydrazine (N2H4) with chlorate ion (ClO3 – ) in basic medium produces nitric oxide gas and chloride ion in gaseous state.
(Balance by oxidation number method)
(iii) Dichlorine heptaoxide (Cl2O7) in gaseous state combines with an aqueous solution of hydrogen peroxide in acidic medium to give chlorite ion (ClO2 – ) and oxygen gas.
(Balance by ion electron method)
