Which metal ion exists in Vitamin B₁₂?
PYQ SSC JE (Junior Engineer) 2018
Which metal ion exists in Vitamin B₁₂?
- A.
Iron
- B.
Zinc
- C.
Cobalt
- D.
Nickel
Attempted by 9 students.
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PYQ SSC JE (Junior Engineer) 2018
Which metal ion exists in Vitamin B₁₂?
Iron
Zinc
Cobalt
Nickel
Attempted by 9 students.
Sign up free to check your answer
Sign up free