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Question:
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.
Answer:

Hi Paras,

Please refer to following videos given  below -

Concept -  https://youtu.be/Os1yNLhMKSg?t=3527

Reference Question - https://youtu.be/EmL-3_uoY60?t=503

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