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The red color of oxyhaemoglobin is mainly due to the:
  • a)
    d–d transition
  • b)
    Metal to ligand charge transfer transition
  • c)
    Ligand to metal charge transfer transit ion
  • d)
    Intra ligand π–π* transition. 
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
The red color of oxyhaemoglobin is mainly due to the:a)d–d trans...
Each hemoglobin protein is made up subunits called hemes, which are what give blood its red color. More specifically, the hemes can bind iron molecules, and these iron molecules bind oxygen. The blood cells are red because of the interaction between iron and oxygen i.e. intra ligand  π–π* transition. 
When the iron is oxygenated(Fe+3), it becomes red. When the iron is deoxygenated(Fe+2), it becomes blue. This is why your veins are blue.
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Most Upvoted Answer
The red color of oxyhaemoglobin is mainly due to the:a)d–d trans...
The red color of oxyhaemoglobin is mainly due to the absorption and reflection of light by the iron (Fe) atom in the heme group of the molecule.
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The red color of oxyhaemoglobin is mainly due to the:a)d–d transitionb)Metal to ligand charge transfer transitionc)Ligand to metal charge transfer transit iond)Intra ligand π–π* transition.Correct answer is option 'D'. Can you explain this answer?
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