Vitamins
BIOMOLECULES (NEET PYQS)

287117 Vitamin \(B_{12}\) contains

1 \(\mathrm{Ca}(\mathrm{II})\)
2 \(\mathrm{Fe}(\mathrm{II})\)
3 Co (III)
4 \(\mathrm{Zn}(\mathrm{II})\)