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Haemoglobin is a complex compound of which metal ion?

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in Chemistry – Class 12 by (188k points)
Haemoglobin is a complex compound of which metal ion?

(a) Fe^2+

(b) Fe^3+

(c) Co^2+

(d) Co^3+

The question was asked in semester exam.

I'm obligated to ask this question of Coordination Compounds Importance and Applications in section Coordination Compounds of Chemistry – Class 12

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The correct choice is (a) Fe^2+

For explanation I would say: Haemoglobin is the red pigment of blood which acts as the oxygen carrier and it a coordination compound of iron(II).

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