NEET Sample Paper NEET Sample Test Paper-72

  • question_answer
    Among the following one with the highest percentage of chlorine is

    A) Chloral             

    B) Pyrene

    C) PVC                             

    D) Gammexene

    Correct Answer: B

    Solution :

    % of chlorine \[=\,\,\,\frac{Mass\,\,of\,\,chlorine}{Mass\,\,of\,\,organic\,\,compound}\times 100\] \[Chloral\,\,(CC{{l}_{3}}CHO)\,\,=\,\,\frac{106.5}{147.5}\times 100=72.20\] \[\operatorname{Pyrene}\,\,\,(CC{{l}_{4}})\,\,=\,\,\frac{142}{154}\times 100=92.20\,\,Highest\] \[\operatorname{Gammexene} \,\left( {{C}_{6}}{{H}_{6}}C{{l}_{6}} \right) =\,\,\frac{213}{291}\,\,\times \,\,100 = 73.19\]


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