Reaction of `Br_(2)` with `Na_(2)CO_(3)` in aqueous solution gives sodium bromide and sodium bromate with evolution of gas. The number of sodium bromide molecules formed in the balanced chemical equation is :

The answer to each of the following questions is a single digit integer, ranging from 0 to 9. If correct answers to the question number A,B,C and D (say) are 4,0,9 and 2 respectively, then correct darkening of bubbles should be as shown on the side. (C) Reaction of Br_(2) with Na_(2)CO_(3) in aqueous solution gives sodium bromide and sodium bromate with evolution of CO_(2) gas. The number of sodium bromide molecules involved in the balanced chemical equation is .....................

The reaction of Br_(2) with Na_(2)CO_(3) in aqueous solution gives sodium bromide and sodium bromate with evolution of CO_(2) gas. The number of sodium bromide molecules involved in the balanced chemical equation is

Reaction of Br_(2) with Na_(2)CO_(3) in aqueous solution given sodium bromide and sodium bromate with evolution of CO_(2) gas. The number of sodium bromide molecules involved in the balanced chemical equation is

Reaction of Br_2 with Na_2CO_3 in aqueous solution gives sodium bromide and sodium bromate with evolution of CO_2 gas. The number of sodium bromide molecules involved in the balanced chemical equation is

Reaction of Br_(2) with Na_(2)CO_(3) in aquesous solution gives sodium bromide bromate with evolution of CO_(2) gas. The number of sodium bromide molecules involved in the balanced chemical equation is: