NEET Sample Paper NEET Sample Test Paper-33

  • question_answer
    Which of the following is a first order reaction?

    A)  \[N{{H}_{4}}N{{O}_{2}}\xrightarrow{{}}{{N}_{2}}+2{{H}_{2}}O\]

    B)  \[2HI{{H}_{2}}+{{I}_{2}}\]

    C)  \[2N{{O}_{2}}\xrightarrow{{}}2NO+{{O}_{2}}\]

    D)  \[2NO+{{O}_{2}}\xrightarrow{{}}2N{{O}_{2}}\]

    Correct Answer: A

    Solution :

    \[N{{H}_{4}}N{{O}_{2}}\xrightarrow{{}}{{N}_{2}}+2{{H}_{2}}\] Rate \[=k[N{{H}_{4}}N{{O}_{2}}]\] The order of reaction is one, hene it is a first order reaction.


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