Question

Match the complexes given in column I with the oxidations states of central metal atoms given in column II and mark the appropriate choice.

Column I (Comples)		Column II (Oxidations state of central atom)
(A)	K3[Co(C2O4)2Cl2]	(i)	0
(B)	[Pt(C2H4)Cl3]−	(ii)	+1
(C)	[Fe(H2O)5NO]SO4	(iii)	+3
(D)	[Ni(CO)4]	(iv)	+2

• A. (A) $\rightarrow$ (ii), (B) $\rightarrow$ (i), (C) $\rightarrow$ (iv), (D) $\rightarrow$ (iii)
• B. (A) $\rightarrow$ (iv), (B) $\rightarrow$ (ii), (C) $\rightarrow$ (i), (D) $\rightarrow$ (iii)
• C. (A) (A) $\rightarrow$ (iii), (B) $\rightarrow$ (iv), (C) $\rightarrow$ (ii), (D)$\rightarrow$ (i)
• D. (A)(A) $\rightarrow$ (i),(B) $\rightarrow$ (ii), (C) $\rightarrow$ (iii), (D) $\rightarrow$ (iv)

Answer 1

Answer: (C)

(A) (A) $\rightarrow$ (iii), (B) $\rightarrow$ (iv), (C) $\rightarrow$ (ii), (D)$\rightarrow$ (i)

Answer 2

(A) $\rightarrow$ (iv), (B) $\rightarrow$ (ii), (C) $\rightarrow$ (i), (D) $\rightarrow$ (iii)