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

  • A

    $r = k[NO][Cl_2]$

  • B

    $r = k[Cl_2][NO]^2$

  • C

    $r = k[Cl_2]^2[NO]$

  • D

    $r = k[Cl_2]$

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