The reaction $2NO + Br_2 \rightarrow  2NOBr,$ follows the mechanism given below

$(I)$  $NO + Br_2 \rightleftharpoons  NOBr_2 $    ........ Fast

$(II)$  $NOBr_2 + NO \rightarrow 2NOBr$     ......... Slow

The overall order of this reaction is

  • A

    $2$

  • B

    $1$

  • C

    $3$

  • D

    None of these

Similar Questions

For the non-stoichiometric reaction $2A + B \to C + D,$ the following kinetic data were  obtained in three separate experiments, all at $298\,K$.

Initial Conc.
 $(A)$
Initial Conc.
 $(B)$

Initial rate of
formation of $C\,(mol\, L^-S^-)$

$0.1\,M$ $0.1\,M$ $1.2 \times 10^{-3}$
$0.1\,M$ $0.2\,M$ $1.2 \times 10^{-3}$
$0.2\,M$ $0.1\,M$ $2.4 \times 10^{-3}$

For the reaction the rate of formation of $C$ will be

The reaction $2 A + B _{2} \rightarrow 2 AB$ is an elementary reaction.

For a certain quantity of reactants, if the volume of the reaction vessel is reduced by a factor of $3,$ the rate of the reaction increases by a factor of $.....$. (Round off to the Nearest Integer).

  • [JEE MAIN 2021]

For a chemical reaction $A \to B$ it is found that the rate of reaction doubles, when the concentration of $A$ is increased four times. The order in $A$  for this reaction is

  • [AIIMS 1997]

For a reactions $A + B \to $product, it was found that rate of reaction increases four times if concentration of $ ‘A’$  is doubled, but the rate of reaction remains unaffected. If concentration of $‘B’ $ is doubled. Hence, the rate law for the reaction is

The rate constant for a second order reaction is $8 \times {10^{ - 5}}\,{M^{ - 1}}\,mi{n^{ - 1}}$. How long will it take a $ 1\,M $ solution to be reduced to $0.5\, M$