For the given reaction, which of the following expressions is correct?

$B r O_{3}^{-} (a q) + 5 B r^{-} (a q) + 6 H^{+} \to 3 B r_{2} (l) + 3 H_{2} O (l)$

\frac{d [B r_{2}]}{d t} = - \frac{d [B r^{-}]}{d t}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

\frac{d [B r_{2}]}{d t} = + \frac{3}{5} \frac{d [B r^{-}]}{d t}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

\frac{d [B r_{2}]}{d t} = - \frac{3}{5} \frac{d [B r^{-}]}{d t}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

\frac{d [B r_{2}]}{d t} = + \frac{5}{3} \frac{d [B r^{-}]}{d t}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C $\frac{d [B r_{2}]}{d t} = - \frac{3}{5} \frac{d [B r^{-}]}{d t}$
For a reaction:
$a A \to b B$
$a, b are stoichiometric coefficients of reactant A and product B respectively$
$Rate = - \frac{1}{a} \times \frac{d [A]}{d t} = + \frac{1}{b} \times \frac{d [B]}{d t}$
So, for the reaction:
$B r O_{3}^{-} (a q) + 5 B r^{-} (a q) + 6 H^{+} \to 3 B r_{2} (l) + 3 H_{2} O (l)$

Writing rate in terms of $B r^{-}$ and $B r_{2}$
$Rate = - \frac{1}{5} \times \frac{d [B r^{-}]}{d t} = + \frac{1}{3} \times \frac{d [B r_{2}]}{d t}$

$\Rightarrow \frac{d [B r_{2}]}{d t} = - \frac{3}{5} \frac{d [B r^{-}]}{d t}$

Suggest Corrections

Similar questions

Q. Which of the following expressions is correct for the rate of reaction given below?

5 B r_{(a q)}^{-} + B r O_{3 (a q)}^{-} + 6 H_{(a q)}^{+} \to 3 B r_{2 (a q)} + 3 H_{2} O_{(l)}

Q. In the reaction,

{B r O_{3}}^{-} (a q .) + 5 {B r}^{-} (a q .) + 6 H^{+} (a q .) ⟶ 3 {B r}_{2} (l) + 3 H_{2} O (l)

.
The rate of appearance of bromine

({B r}_{2})

Q. In the following reaction, how is the rate of appearance of bromine related to the rate of disappearance of bromide?

B r O_{3 (a q)}^{-} + 5 B r_{(a q)}^{-} + 6 H_{(a q)}^{+} \to 3 B r_{2 (l)} + 3 H_{2} O_{(l)}

Q. In the following reaction, how is the rate of appearance of

B r_{2}

{B r}^{-}

B r O^{3 -} (a q) + 5 B r^{-} (a q) + 6 H^{+} \to 3 B r_{2} (l) + 3 H_{2} O (l)

Which of the following expressions is correct for the rate of reaction given below? $5 B - r (a q) + B r 0_{3}^{-} (a q) + 6 H^{+} (a q) \to 3 B r_{2} (a q) + 3 H_{2} O (l)$

$(a) \frac{Δ [B r^{-}]}{Δ t} = 5 \frac{Δ [H^{+}]}{Δ t} (b) \frac{Δ [B r^{-}]}{Δ t} = \frac{6}{5} \frac{Δ [H^{+}]}{Δ t} (c) \frac{Δ [B r^{-}]}{Δ t} = \frac{5}{6} \frac{Δ [H^{+}]}{Δ t} (d) \frac{Δ [B r^{-}]}{Δ t} = 6 \frac{Δ [H^{+}]}{Δ t}$

Join BYJU'S Learning Program

Explore more

Effects of Hardness

Standard VII Chemistry

Join BYJU'S Learning Program

For the given reaction, which of the following expressions is correct? BrO−3(aq)+5Br−(aq)+6H+→3Br2(l)+3H2O(l)

For the given reaction, which of the following expressions is correct?

$B r O_{3}^{-} (a q) + 5 B r^{-} (a q) + 6 H^{+} \to 3 B r_{2} (l) + 3 H_{2} O (l)$