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QUESTION
Q3) In which of the following in which the iron in the heme group is in the Fe3+ (ferric) state?? [ DPMT 1999 ]

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Ahaematogenous pigment formed from hemoglobin by oxidation of the iron atom from the ferrous (Fe2+)to the ferric (Fe3+) state. A small amount is found in the blood normally, but injury or toxic agents convert a larger proportion of hemoglobin into methemoglobin, which does not function as an oxygen carrier


Answer : (b)