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JEE Main & Advanced Chemistry Some Basic Concepts of Chemistry / रसायन की कुछ मूलभूत अवधारणाएँ Question Bank Self Evaluation Test - Some Basic Concepts of Chemistry

  • question_answer
    The percentage of Se in peroxidase anhydrous enzyme is 0.5% by weight (atomic weight = 78.4). Then minimum molecular weight of peroxidase anhydrous enzyme is

    A) \[1.568\times {{10}^{3}}\]       

    B) \[1.568\times {{10}^{4}}\]

    C) 15.68                           

    D) \[3.136\times {{10}^{4}}\]

    Correct Answer: B

    Solution :

    [b] 0.5% by weight means of Mol. wt. is 100 then mass of Se is 0.5. If at least one atom of Se is present in the molecule then \[M.Wt=\frac{100}{0.5}\times 78.4=1.568\times {{10}^{4}}\]


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