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RAJASTHAN ­ PET Rajasthan PET Solved Paper-2002

  • question_answer
    How much\[{{O}_{2}}\]is required for the complete combustion of\[1\,L\,{{C}_{3}}{{H}_{3}}\]?

    A)  0.2 L            

    B)  0.5 L

    C)  5 L             

    D)  4.8 L

    Correct Answer: C

    Solution :

     \[\underset{\begin{smallmatrix}  1\,mol \\  1\,L \end{smallmatrix}}{\mathop{{{C}_{3}}{{H}_{8}}}}\,+\underset{\begin{smallmatrix}  5\,mol \\  5\,L \end{smallmatrix}}{\mathop{5{{O}_{2}}}}\,\xrightarrow[{}]{{}}3C{{O}_{2}}+4{{H}_{2}}O\] Hence\[5L\]oxygen will require for the complete combustion of\[1L\,{{C}_{3}}{{H}_{8}}.\]


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