JEE Main & Advanced JEE Main Paper (Held On 9 April 2016)

  • question_answer
    An organic compound contains C, H and S. The minimum molecular weight of the compound containing 8% sulphur is: (atomic weight of S = 32 amu)   JEE Main Online Paper (Held On 09 April 2016)

    A) 300 g \[\text{mo}{{\text{l}}^{\text{-1}}}\]                           

    B) 400 g \[\text{mo}{{\text{l}}^{\text{-1}}}\]

    C) 200 g \[\text{mo}{{\text{l}}^{\text{-1}}}\]                           

    D) 600 g \[\text{mo}{{\text{l}}^{\text{-1}}}\]

    Correct Answer: B

    Solution :

                    8 g sulphur present in = 100 g of organic compound. \[\therefore \]32 g sulphur present in \[=\frac{100}{8}\times 32=400g\]of organic compound. Hence, minimum molecular weight of compound = 400 g/mol


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