Class 12th Exam Chemistry VVI Objective Question in English Co-Ordination Chapter
9. COORDINATION COMPOUNDS
1. Coordination number of Cr in Na3[Cr(C2O4)3] is :
(A) 3
(B) 4
(C) 5
(D) 6
| Answer :- (A) |
2. The oxidation number of Ni in [Ni(CO)4] is
(A) O
(B) 2
(C) 3
(D) 4
| Answer :- (A) |
3. Ligands are capable of donating atleast:
(A) one pair of electrons
(B) one electron
(C) three electron
(D) all of these
| Answer :- (D) |
4. K2 [Fe(CN)6] is a/an :
(A) double salt
(B) complex salt
(C) acid
(D) base
| Answer :- (B) |
5. Which of the following compounds has tetrahedral geometry?
(A) [Ni(CN)4]2-
(B) [Pd(CN)4]2-
(C) [PdCl4]2-
(D) [NiCl4]2-
| Answer :- (D) |
6. The number of possible isomers for the complex [Co (C2O4)2 (NH3)2]
(A) 1
(B) 2
(C) 3
(D) 4
| Answer :- (B) |
7. The oxidation state of nickel in [Ni(CO4)] is :
(A) 1
(B) 4
(C) 2
(D) 3
| Answer :- (B) |
8. Ammonia gas when passed through CuSO4 solution gives deep blue colouration of :
(A) [Cu(NH3)4]SO4
(B) [Cu(NH3)6]SO4
(C) [Cu(NH3)2]SO4
(D) CuSO4.4NH3
| Answer :- (A) |
9. Which complex has dsp2-hybridization of the central metal atom ?
(A) [Fe(CO)5]
(B) [Ni(CO)4]
(C) [Ni(CN)4]2-
(D) [Cr(H2O)6]3+
| Answer :- (C) |
10. The oxidation number of Fe in K4 [Fe(CN)6] is :
(A) +2
(B) +3
(C) -2
(D) -3
| Answer :- (A) |
11. K3 [Fe(CN)6] is a:
(A) Double Salt
(B) Complex compound
(C) Acidic Salt
(D) Common Salt
| Answer :- (B) |
13. Which of the following ligands form a chelate ?
(A) Acetate
(B) Oxalate
(C) Cyanide
(D) Ammonia
| Answer :- (B) |
14. Which of the following is not a neutral ligand ?
(A) H2O
(B) NH3
(C) ONO
(D) CO2
| Answer :- (C) |
15. Which of the following ligands will not show chelation ?
(A) EDTA
(B) DMG
(C) Ethene-1, 2-diainine
(D) SCN–
| Answer :- (D) |
16. What is the coordination number of Cr in K3 (Cr(ox)3]
(A) -6
(B) 5
(C) 4
(D) 3
| Answer :- (A) |
17. The Ean of cobalt in the complex ion [Co(en)2 Cl2] is.
(A) -27
(B) 36
(C) 33
(D) 35
| Answer :- (B) |
18. Spelter is:
(A) Pure zinc
(B) Impure zinc
(C) Impure aluminium
(D) Impure merecury
| Answer :- (B) |
19. The hybridisation of Fe in K4 [Fe(CN)6] :
(A) dSp2
(B) Sp2
(C) d2Sp3
(D) Sp3d2
| Answer :- (C) |
20. (Co(NH3)6]Cl3 is which type of complex compound :
(A) Cationic complex
(B) Anionic complex
(C) Neutral complex
(D) None of these
| Answer :- (C) |
21. IUPAC name of H2 [PtCl6] is :
(A) Hydrogen hexachloro platinate (IV)
(B) Hydrogen hexachloro plantinate (II)
(C) Hydrogen hexa chloride Pt (IV)
(D) Hydrogen hexa chlorido Pt (II)
| Answer :- (A) |
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