RAJASTHAN ­ PET Rajasthan PET Solved Paper-2007

  • question_answer
    Which of the following is a combustion reaction?

    A)  \[C+{{O}_{2}}\xrightarrow[{}]{{}}C{{O}_{2}}\]

    B)  \[C{{H}_{4}}+{{O}_{2}}\xrightarrow[{}]{{}}C{{O}_{2}}+{{H}_{2}}O\]

    C)  \[Mg+{{O}_{2}}\xrightarrow[{}]{{}}MgO\]

    D)  All of the above

    Correct Answer: D

    Solution :

     Those reactions in which substance produces heat on reaction with oxygen are called combustion reaction. Example \[C+{{O}_{2}}\xrightarrow[{}]{{}}C{{O}_{2}}+Heat\] \[Mg+{{O}_{2}}\xrightarrow[{}]{{}}MgO+Heat\]


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