JEE Main & Advanced Chemistry Hydrocarbons / हाइड्रोकार्बन Question Bank Alkane

  • question_answer
    What is the molecular formula of the alkane, the 5.6 litre of which weight 11 g at STP [MP PMT 2003]

    A) \[{{C}_{6}}{{H}_{14}}\]

    B) \[{{C}_{4}}{{H}_{10}}\]

    C) \[{{C}_{3}}{{H}_{8}}\]

    D) \[{{C}_{2}}{{H}_{6}}\]

    Correct Answer: D

    Solution :

               Molecular mass can be obtained by the victor mayer process            \[\text{Molecular}\,\,\text{mass}=\frac{\text{Weight}\,}{V\,ml.}\times \text{22400}\]        \[=\frac{\text{11}}{\text{5600}}\times 22400=44\]


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