A. Chlorine
B. Iron
C. Calcium
D. None of these
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Related Mcqs:
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- The function of hemoglobin is____________?
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- The main Constituent of Biogas is__________?
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- Main constituent in air is ___________?
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- The main constituent of Pearls are: ______________?
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- The principal constituent of the atmosphere of the Earth is?
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- The metal, which is a constituent of vitamin B12 is____________?
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- Wood is the main raw material for the manufacture of ____________?
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- Main Control System of our body is _____?
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- Main use of salt in diet is to : ___________?
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The correct answer to the question: "The main constituent of hemoglobin is___________?" is "Iron".