Home
Class 12
CHEMISTRY
A following mechanism has been proposed ...

A following mechanism has been proposed for a reaction:
`2A+Brarr D+E`
`A+B rarr C+D` (slow)
`A+C rarr E` (fast)
The rate law expresison for the reaction is

A

`r = k[A]^(2)[B]`

B

`r = k[A][B]`

C

`r = k[A]^(2)`

D

`r = k[A][C]`

Text Solution

Verified by Experts

The correct Answer is:
B
Slow step is
`A+B rarr C+D (slow)`
Hence, `r = k[A][B]`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • CHEMICAL KINETICS

    CENGAGE CHEMISTRY|Exercise Exercises Assertion-Reasoning|22 Videos

  • CHEMICAL KINETICS

    CENGAGE CHEMISTRY|Exercise Exercises Integer|15 Videos

  • CHEMICAL KINETICS

    CENGAGE CHEMISTRY|Exercise Exercises Multiple Correct|34 Videos

  • CARBOXYLIC ACIDS AND THEIR DERIVATIVES

    CENGAGE CHEMISTRY|Exercise Exercises Archives (Analytical And Descriptive)|34 Videos

  • COORDINATION COMPOUNDS

    CENGAGE CHEMISTRY|Exercise Archives Subjective|18 Videos

Similar Questions

Explore conceptually related problems

The mechanism for the reaction, 2 A + B to C + D is given below: i. A + B to E to C (slow) ii. A + E to D (fast) The overall order of the reaction is ______

A reaction is found to proceed in two steps as A + B rarr E (slow),, A+E rarr C+D (fast). Write the law expresison and overall balanced equation.

Knowledge Check

  • A following mechanism has been proposed for a reaction 2A +B rarr D rarr E A+ B rarrC+D (slow) A+C rarr E (fast) The rate law expression for the reaction by RDS methd is:

    A
    `r=k[A]^(2)[B]`
    B
    `r=k[A][B]`
    C
    `r=k[A]^(2)`
    D
    `r=k[A][C]`

  • 2A + B to D +E , for the reaction proposed mechanism A + B to C +D (slow), A + C to E (fast). The rate law expression for the reaction is

    A
    `r=K[A]^(2)[B]`
    B
    r=K[A][B]
    C
    `r=K[A]^(2)`
    D
    r=K[A][C]

  • 2A+2B to D +E for the reaction following mechanism has been proposed . A+2B to 2C +d ( slow) A+2C to E ( fast ) The rate law expression for the reaction is

    A
    `Rate =K [A]^(2) [B]^(2) `
    B
    `"Rate "= [A]^(2) [B]^(2) [C ]`
    C
    `"rate " = k = [A] [B]^(2) `
    D
    `"Rate "=k[A][B]`

    • Similar Questions

    Explore conceptually related problems

    For the reaction : A + 2B rarr C + D , the expression of rate of reaction will be :

    For the reaction, 2NO+Cl_(2)rarr2NOCl the following mechanism has been proposed. NO+Cl_(2)hArr NOCl_(2)" " (fast) NOCl_(2)+NOrarr2NOCl" " (slow) The rate for the reaction is :

    A chemical reaction A + 2B rArr AB_(2) follows in two steps A + B rArr AB(slow) AB + B rArr AB_(2) (fast) Then the order of the reaction is

    The reaction , X + 2Y + Z rarr N occurs by the following mechanism (i) X+Y hArr M (very rapid equilibrium) (ii) M + Z rarr O (slow) (iii) O + Y rarr N (very fast) What is the rate law for this reaction

    The mechanism for the overall reaction is A_(2) + B rarr C A_(2) rarr 2A (slow) 2A + B rarr X (fast) If a catalyst D changes the mechanism to A_(2) + D rarr A_(2) D (slow) A_(2) D rArr 2A+D (fast) 2A +B rarr C (fast) Which is the rate expresison for the reaction with and without a catalyst ?

    Home
    Profile