MGIMS WARDHA MGIMS WARDHA Solved Paper-2009

  • question_answer
    How many grams of\[C{{O}_{2}}\]will be produced by the complete combustion of 2 moles, of ethanol?

    A)  132 g                                    

    B)  44 g

    C)  176 g                                    

    D)  88 g

    Correct Answer: C

    Solution :

                    \[\underset{\begin{smallmatrix}  1\text{ }mole \\  =46g \end{smallmatrix}}{\mathop{{{C}_{2}}{{H}_{5}}OH}}\,+3{{O}_{2}}\xrightarrow{{}}\underset{\begin{smallmatrix}  2\text{ }moles \\  88g \end{smallmatrix}}{\mathop{2C{{O}_{2}}}}\,+3{{H}_{2}}O\] 1 mole (46 g)\[{{C}_{2}}{{H}_{5}}OH\]gives\[=88\text{ }g\text{ }C{{O}_{2}}\] 2 moles (92 g)\[{{C}_{2}}{{H}_{5}}OH\]will give\[=176\text{ }g\text{ }C{{O}_{2}}\]


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