pBlock ElementsII 2 Question 33
36. Reaction of $\mathrm{Br}{2}$ with $\mathrm{Na}{2} \mathrm{CO}{3}$ in aqueous solution gives sodium bromide and sodium bromate with evolution of $\mathrm{CO}{2}$ gas. The number of sodium bromide molecules involved in the balanced chemical equation is
(2011)
Subjective Questions
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Solution:
- $\mathrm{Br}_{2}$ is disproportionated in basic medium as
$3 \mathrm{Br}{2}+3 \mathrm{Na}{2} \mathrm{CO}{3} \longrightarrow 5 \mathrm{NaBr}+\mathrm{NaBrO}{3}+3 \mathrm{CO}_{2}$
