AIPMT PRELIMS2003Chemistry-Coordination Compounds
AIPMT PRELIMS 2003 Chemistry Structure of Vitamin B₁₂ MCQ Question
Type: MCQ-fact-Easy-Class 12
Vitamin B₁₂ contains :
A
Fe(II)
B
Co(III)
C
Zn(II)
D
Ca(II)
Correct Answer
Option B
Detailed Explanation
Vitamin B₁₂ contains cobalt in the +3 oxidation state, which is Co(III).
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