Question

In catalytic acidic medium, the rate of reaction between $Br{O}_{3^{-}}$ and $B{r}^{-}$ ions is given by the expression $-\frac{d\left[Br{O}_3^{-}\right]}{dt}=k\left[Br{O}_3^{-}\right]\left[B{r}^{-}\right][H^{+}{]}^2$

Now consider the statements
(I) Rate constant for the reaction does not depend upon the concentration of $B{r}^{–}$ ions
(II) Rate of reaction is independent of the concentration of acid added
(III) The change in $pH$ of the solution will affect the rate of reactions
The incorrect statements is/are

• A. I, II & III
• B. II only
• C. I only
• D. I & II only

Answer 1

The correct option is B II only

The change in pH of the solution will affect the rate of reaction