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JEE Main & Advanced Chemistry Chemical Kinetics / रासायनिक बलगतिकी Question Bank Rate law and Rate Constant

  • question_answer
    The given reaction \[2NO+{{O}_{2}}\to 2N{{O}_{2}}\] is an example of [CBSE PMT 2001; JIPMER 2002]

    A)                 First order reaction        

    B)                 Second order reaction

    C)                 Third order reaction       

    D)                 None of these

    Correct Answer: C

    Solution :

               It is a third order reaction because                                 \[\text{Rate}=\text{K }\!\![\!\!\text{ NO}{{\text{ }\!\!]\!\!\text{ }}^{\,\,\text{2}}}{{[{{O}_{2}}]}^{\,1}}\]  \[\therefore O.R.=2+1=3\]


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