A) cobalt
B) magnesium
C) manganese
D) iron
Correct Answer: A
Solution :
(i) Cobalt: It is present in vitamin \[{{B}_{12}}\]. The cobalt atom is coordinated to 4 nitrogen atom. (ii) Magnesium: It is found in chlorophyll. (iii) Iron: It is found in haemoglobin.You need to login to perform this action.
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