Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Chemical Kinetics question

2023 · Q109
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /NEET
  3. /Chemistry
  4. /Chemical Kinetics
  5. /2023 · Q109

Chemical Kinetics question

2023 · Q109

NEETChemistryChemical KineticsMCQ+4 / −1

The correct options for the rate law that corresponds to overall first order reaction is

  1. A
    Rate =k[A]0[ B]2=\mathrm{k}[\mathrm{A}]^0[\mathrm{~B}]^2=k[A]0[ B]2
  2. B
    Rate =k[A][B]=\mathrm{k}[\mathrm{A}][\mathrm{B}]=k[A][B]
  3. C
    Rate =k[A]1/2[ B]2=\mathrm{k}[\mathrm{A}]^{1 / 2}[\mathrm{~B}]^2=k[A]1/2[ B]2
  4. D
    Rate =k[A]−1/2[ B]3/2=\mathrm{k}[\mathrm{A}]^{-1 / 2}[\mathrm{~B}]^{3 / 2}=k[A]−1/2[ B]3/2
View written solutionFree

Correct answer: D

$$\begin{aligned} & \mathrm{r}=\mathrm{k}[\mathrm{A}]^{-1 / 2}[\mathrm{~B}]^{3 / 2} \\ & \text { order }=-\frac{1}{2}+\frac{3}{2} \\ & =\frac{2}{2} \\ & =1 \end{aligned}$$

PreviousNext

More from Chemical Kinetics

  • For a reaction 3 A→2 B The average rate of appearance of B is given by ΔtΔ[B]​. The correct relation between the average rate of appearance of B with the…2023 · MCQ
  • For a certain reaction, the rate =k[A]2[ B], when the initial concentration of A is tripled keeping concentration of B constant, the initial rate would2023 · MCQ
  • Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : A reaction can have zero activation energy. Reason R : The minimum extra amount of energy absorbed by reactant molecules so…2023 · MCQ
  • For a chemical reaction 4A + 3B → 6C + 9D Rate of formation of C is 6 × 10−2 mol L−1 s−1 and rate of disappearance of A is 4 × 10−2 mol L−1 s−1. The rate of reaction and amount of B consumed in interval of 10…2022 · MCQ
  • The given graph is a representation of kinetics of a reaction The y and x axes for zero and first order reactions, respectively are Includes diagram2022 · MCQ
  • For a first order reaction A → Products, initial concentration of A is 0.1 M, which becomes 0.001 M after 5 minutes. Rate constant for the reaction in min−1 is2022 · MCQ
  • For a reaction, A → B, enthalpy of reaction is −4.2 kJ mol−1 and enthalpy of activation is 9.6 kJ mol−1. The correct potential energy profile for the reaction is shown in option.2021 · MCQ
  • The slope of Arrhenius plot (lnkv/sT1​) of first order reactino is −5 × 103K. The value of Ea of the reaction is. Choose the correct option for your answer. [Given R = 8.314 JK−1mol−1]2021 · MCQ