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NEET UG CHEMISTRY MCQ: BIOMOLECULES

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Understanding +4 | -1
Which of the following is not correct?
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Correct option: D
The metal ion present in vitamin B12  is  Mg2+{B_{12}}\;is\;\mathrm{ }M{g^{2 + }}
Option D (The metal ion present in vitamin B12  is  Mg2+{B_{12}}\;is\;\mathrm{ }M{g^{2 + }}) is correct because the metal ion present in vitamin B12 is cobalt (Co), not magnesium (Mg).

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