9th Class Science Sample Paper Science Olympiad Model Test Paper-7

  • question_answer
    Calculate the number of molecules of chloroform \[(CHC{{l}_{3}})\]weighing\[0.0239\,\,g\,\,(H=1,\,C=12,\,CL=35.5)\].

    A) \[0.2046\times {{10}^{17}}\]

    B)  \[1.2046\times {{10}^{20}}\]

    C)  \[2.2046\times {{10}^{22}}\]

    D)  \[3.1046\times {{10}^{21}}\]

    E)  None of these

    Correct Answer: B


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