The iron in hemoglobin is ______ when carrying oxygen to cells,and _______ after releasing the oxygen.
A) diamagnetic Fe2+,paramagnetic Fe3+
B) diamagnetic Fe2+,paramagnetic Fe2+
C) paramagnetic Fe2+,diamagnetic Fe3+
D) paramagnetic Fe3+,diamagnetic Fe3+
E) none of these
Correct Answer:
Verified
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A)Co3+
B)Mg2+
C)Fe2+
D)Sc3+
E)none of these
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