Question

Match the metals (column I) with the coordination compound(s)/enzyme(s) (column II)

(Column I)	Metals	(Column II)	Coordination compounds(s) enzyme(s)
(A)	Co	(i)	Wilkinson catalyst
(B)	Zn	(ii)	Chlorophyl
(C)	Rh	(iii)	Vitamin \(\mathrm{B_{12}}\)
(D)	Mg	(iv)	Carbonic anhydrase

• A. (A)-(iii); (B)-(iv); (C)-(i); (D)-(ii)
• B. (A)-(iv); (B)-(iii); (C)-(i); (D)-(ii)
• C. (A)-(i); (B)-(ii); (C)-(iii); (D)-(iv)
• D. (A)-(ii); (B)-(i); (C)-(iv); (D)-(iii)

Hint:

Vitamin \(\mathrm{B_{12}}\) contains cobalt, carbonic anhydrase contains zinc, Wilkinson's catalyst contains rhodium and chlorophyll contains magnesium.

Answer 1

The Correct Option is A

Co is the central metal of vitamin \(\mathrm{B_{12}}\) (cyanocobalamin): (A)-(iii).
Zn is present in the enzyme carbonic anhydrase: (B)-(iv).
Rh is the metal in Wilkinson's catalyst \(\mathrm{[RhCl(PPh_3)_3]}\): (C)-(i).
Mg is the central atom of chlorophyll: (D)-(ii).
Hence (A)-(iii); (B)-(iv); (C)-(i); (D)-(ii).
Answer: (1) (A)-(iii); (B)-(iv); (C)-(i); (D)-(ii)