$A(g) + 2B(g) \to $ product is a elementary reaction, which of the following is incorrect.

The given data are for the reaction :

$2NO(g) + Cl_2(g) \to 2NOCl(g)$ at $298\, K$

$[Cl_2]$                $[NO]$                       Rate $(mol\, L^{-1} \sec^{-1})$

$I$    $0.05\, M$       $0.05\,M$                           $1 \times 10^{-3}$

$II$   $0.15\, M$      $0.05\,M$                           $3 \times 10^{-3}$

$III$  $0.05\, M$      $0.15\,M$                           $9 \times 10^{-3}$

The rate law for the reaction is

Write differential rate expression of following reaction and give its order of reaction :

$2 N _{2} O _{5} \rightarrow 4 NO _{2}( g )+ O _{2}$

$C _{4} H _{9} Cl + OH ^{-} \rightarrow C _{4} H _{9} OH + Cl ^{-}$

For a reaction between $A$ and $B$ the order with respect to $A$ is $2$ and the other with respect to $B$ is $3.$ The concentrations of both $A$ and $B$ are doubled, the rate will increase by a factor of

Define following term / Give definition :

$(1)$ Elementary reaction

$(2)$ Complex reaction

Following is the rate constant of reaction what is the overall order of reaction ?

$(a)$ $6.66 \times 10^{-3} \,s ^{-1}$

$(b)$ $4.5 \times 10^{-2} \,mol ^{-1} \,L \,s ^{-1}$