Q. Which one of the following contains cobalt?

  • (A) Chlorophyll
  • (B) Haemoglobin
  • (C) Vitamin C
  • (D) Vitamin B12
✅ Correct Answer: (D) Vitamin B12

Published by Yogesh ⭐ 7.67K Points at 14-Nov-2021 03:03 pm in Chemistry

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