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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
    Haemoglobin contains 0.33% of iron by weight. The molecular weight of haemoglobin is approximately 67200. The number of iron atoms (at. wt. of Fe =56) present in one molecule of haemoglobin is

    A) 6         

    B) 1      

    C) 2                                 

    D) 4

    Correct Answer: D

    Solution :

    [d] Weight of Iron in 67200 \[=\frac{0.33}{100}\times 67200=221.76\] Number of atoms of Iron \[=\frac{221.76}{56}=3.96=4\]


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