Pick out wrong combination [DCE 2000]

1.	Pick out wrong combination [DCE 2000]
A.	\[F{{e}^{+2}}\to \] Haemoglobin
B.	\[M{{g}^{2+}}\to \] Photosynthesis
C.	\[S{{e}^{2+}}\to \] Kreb Cycle
D.	\[C{{O}^{+2}}\to \] Vitamin B-12
Answer» D. \[C{{O}^{+2}}\to \] Vitamin B-12

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Pick out wrong combination [DCE 2000]

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