Match the metals (column I) with the coordination compound(s)/enzyme(s) (column II):
(A) Co → (B) Zn → (C) Rh → (D) Mg
(i) Wilkinson catalyst (ii) Chlorophyll (iii) Vitamin B₁₂ (iv) Carbonic anhydrase

Question

Canvas Classes · Accepted Answer

Strategy:
 Match the metal centers to their famous biological or catalytic complexes.

Step 1: Perform Matches
- (A) Co: The central metal in Vitamin B12 (cyanocobalamin) is Cobalt. (A  iii).
- (B) Zn: The enzyme carbonic anhydrase requires a Zinc ion at its active site to hydrate . (B  iv).
- (C) Rh: Wilkinson catalyst, , relies on Rhodium. (C  i).
- (D) Mg: The core of the Chlorophyll molecule contains a Magnesium ion. (D  ii).

Step 2: Conclusion
The correct sequence is A-iii, B-iv, C-i, D-ii

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