Rate law for the reaction $aA + bB \rightarrow cC + dD$ is $r = k[A][B]$. The rate of reaction doubles if:

  • A
    Concentration of both $A$ and $B$ are doubled.
  • B
    Concentration of $A$ is doubled and concentration of $B$ is kept constant.
  • C
    Concentration of $B$ is doubled and concentration of $A$ is halved.
  • D
    Concentration of $A$ is kept constant and concentration of $B$ is halved.

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Match List-$I$ with List-$II$:
List-$I$ (Order of Reaction)List-$II$ (Unit of rate constant)
$A$. Zero order$I$. $mol^{-1} L s^{-1}$
$B$. First order$II$. $mol^{-2} L^{2} s^{-1}$
$C$. Second order$III$. $s^{-1}$
$D$. Third order$IV$. $mol L^{-1} s^{-1}$

Select the rate law for the reaction $A + B \longrightarrow C$ based on the following data:
$Exp$ $[A]$ $[B]$ $Rate$
$1$ $0.012$ $0.035$ $0.10$
$2$ $0.024$ $0.070$ $0.80$
$3$ $0.024$ $0.035$ $0.10$
$4$ $0.012$ $0.070$ $0.80$

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For a certain chemical reaction $X \rightarrow Y$,the rate of formation of the product is plotted against time as shown in the figure. The number of correct statement$(s)$ from the following is $.......$.
$A$. Overall order of this reaction is one
$B$. Order of this reaction cannot be determined
$C$. In region-$I$ and $III$,the reaction is of first and zero order respectively
$D$. In region-$II$,the reaction is of first order
$E$. In region-$II$,the order of reaction is in the range of $0.1$ to $0.9$.

Which of the following statements regarding the order of a reaction is incorrect?

$A$ reaction between two different reactants cannot be a .....

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