![Which of the following metals is a constituent of Vitamin B12?](https://www.gkseries.com/blog/wp-content/uploads/2022/05/Which-of-the-following-metals-is-a-constituent-of-Vitamin-B12.png)
Q. Which of the following metals is a constituent of Vitamin B12?
A. Iron
B. Magnesium
C. Zinc
D. Cobalt
Answer: Cobalt
A. Iron
B. Magnesium
C. Zinc
D. Cobalt
Answer: Cobalt
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