Balancing redox reactions

The unbalanced chemical reactions given in List I show missing reagent or condition (?) which are provided in List II. Match List I with List II and select the correct answer using the code given below the lists:

Reaction of $\ce{Br2}$ with $\ce{Na2CO3}$ in aqueous solution gives sodium bromide and sodium bromate with evolution of $\ce{CO2}$ gas. The number of sodium bromide molecules involved in the balanced chemical equation is

Reduction of the metal centre in aqueous permanganate ion involves

Match each of the reactions given in Column I with the corresponding product(s) given in Column II.

Aqueous solution of $\ce{Na2S2O3}$ on reaction with $\ce{Cl2}$ gives