In the presence of acid, the initial concentration of cane sugar was reduced from $0.2 \mathrm{M}$ to $0.1 \mathrm{M} \text{in} 5 \mathrm{hrs} \text{and to} 0.05 \mathrm{M} \text{in} 10 \mathrm{hrs}$. The reaction must be of :

In the following reaction, how is the rate of appearance of the underlined product related to the rate of disappearance of the underlined reactant?

${\mathrm{BrO}}_3^{-}\left(\mathrm{aq}\right)+\underset{¯}{5{\mathrm{Br}}^{-}}\left(\mathrm{aq}\right)+6{\mathrm{H}}^{+}\left(\mathrm{aq}\right)⟶\underline{3{\mathrm{Br}}_2\left(\mathrm{l}\right)}+3{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)$