JEE CHEMISTRY MCQ: CHEMICAL KINETICS

Correct statements in the following are

a) In $\mathrm{Hg}_{(t)}+\mathrm{Cl}_{2(g)} \rightarrow \mathrm{HgCl}_{2(s)}$, the rate of disappearance of any of the reactants is same as the rate of appearance of the product

b) In $2 \mathrm{HI}_{(g)} \rightarrow \mathrm{H}_{2(g)}+\mathrm{I}_{2(g)}$, the rate of consumption of $\mathrm{HI}$ is half of rate of formation of $\mathrm{H}_2$ or $\mathrm{I}_2$

c) In $\underset{(a q)}{5 \mathrm{Br}^{-}}+\underset{(\mathrm{aq})}{\mathrm{BrO}_3^{-}}+\underset{(\mathrm{aq})}{6 \mathrm{H}^{+}} \rightarrow \underset{(\mathrm{aq})}{3 \mathrm{Br}_2}+3 \mathrm{H}_2 \mathrm{O}(\mathrm{I})$, the rate of consumption of $\mathrm{Br}^{-}(\mathrm{aq})$ is 1.66 times to the rate of a formation of $\mathrm{Br}_2$