Q. The elements which are found in Haemoglobin, Chlorophyll, Chalcopyrite & Vitamin B12 are respectively as follows__________?
Answer: Iron, Magnesium, Copper, Cobalt
Notes: The elements which are found in Haemoglobin, Chlorophyll, Chalcopyrite & Vitamin B12 are respectively as follows: Iron, Magnesium, Copper, Cobalt.

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 15 in 5. Biomolecules & Bio-chemistry in above course in App.