The metal, which is a constituent of vitamin B12 is____________...? Mcqs

✅ Correct Answer: Cobalt

✅ Correct Answer: Cabbage

✅ Correct Answer: Calcium Carbonate &Megnesium Carbonate

✅ Correct Answer: Heat energy from the earth’s interior

✅ Correct Answer: A class of nucleic acids

✅ Correct Answer: radio active gas

✅ Correct Answer: Nitrogen

✅ Correct Answer: Iron

✅ Correct Answer: Beriberi

✅ Correct Answer: Methane

✅ Correct Answer: smallest particle of an element which can undergo a chemical reaction