In acidic medium- the rate of reaction between BrO3- and Br- is given by the expression d -BrO3-dt - k-BrO3- -Br- -H-2 Select correct statements-

The correct options are C Doubling the concentration of H^⊕ ions will increase the reaction rate by 4 times. D The change in pH of the solution will affec ...

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Byju's Answer

Standard XII

Chemistry

Order of Reaction

In acidic med...

Question

In acidic medium, the rate of reaction between $B r O_{3}^{⊖}$ and $B r^{⊖}$ is given by the expression $\frac{d [B r O_{3}^{⊖}]}{d t} = k [B r O_{3}^{⊖}] [B r^{⊖}] [H^{\oplus}]^{2}$
Select correct statements.

The rate constant of the reaction depends upon the concentration of

H^{\oplus}

ions.

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The rate of reaction is independent of the concentration of the acid added.

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Doubling the concentration of

H^{\oplus}

ions will increase the reaction rate by 4 times.

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

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Solution

The correct options are
C Doubling the concentration of $H^{\oplus}$ ions will increase the reaction rate by 4 times.
D The change in pH of the solution will affect the rate of reaction.
As given,
Rate $\propto [H^{\oplus}]^{2}$ .
Hence, doubling the concentration of $H^{\oplus}$ ions will increase the reaction rat by 4 times.
Also, the change in pH will change the concentration of $H^{\oplus}$ and therefore, the rate will change.

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Similar questions

Q. In acidic medium, the rate of reaction between

[B r O_{3}^{-}]

and

[B r^{-}]

ions is given by the expression

- \frac{d [B r O_{3}^{-}]}{d t} = k [B r O_{3}^{-}] [B r^{-}] [H^{+}]^{2}

It means:
(i) Rate constant of the reaction depends upon the concentration of

H^{+}

ions
(ii) Rate of reaction is independent of the concentration of acid added
(iii) The change in

p H

of the solution will affect the rate of reaction
(iv) Doubling the concentration of

H^{+}

ions will increase the reactions rate by

4

times.

Q. In acidic medium, the rate of reaction between

B r O_{3}^{-}

and

B r^{-}

is given by the expression

- \frac{d [B r O_{3}^{-}]}{d t} = k [B r O_{3}^{-}] [B r^{-}] [H^{+}]^{2}

. It means:

Q. In acidic medium the rate of reaction between

(B r O_{3})^{-}

and

B r^{-}

ion is given by the expression.

- [d (B r O_{3}^{-}) / d t] = K [B r O_{3}^{-}] [B r^{-}] [H^{+}]^{2}

. It means:

Q. In acidic medium the rate of reaction between

(B r O_{3})^{-} a n d B r^{-}

ion is given by the expression

\frac{d [B r O_{3}^{-}]}{d t} = k [B r O_{3}^{-}] [B r^{-}] {[H^{+}]}^{2}

it means:

Q. In an acidic medium, the rate of reaction between

(B r O_{3}^{⊖})

and

B r^{⊖}

ions is given by the expression

\frac{- d [B r O_{3}^{⊖}}{d t} = k [B r O_{3}^{⊖}] [B r^{⊖}] [H^{\oplus}]^{2}

It means :

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In acidic medium, the rate of reaction between BrO⊖3 and Br⊖ is given by the expression d[BrO⊖3]dt=k[BrO⊖3][Br⊖][H⊕]2 Select correct statements.

In acidic medium, the rate of reaction between $B r O_{3}^{⊖}$ and $B r^{⊖}$ is given by the expression $\frac{d [B r O_{3}^{⊖}]}{d t} = k [B r O_{3}^{⊖}] [B r^{⊖}] [H^{\oplus}]^{2}$
Select correct statements.