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Coordination Compounds

Board » Bihar Board » Class 12th » English Medium » Science » Chemistry » Part-1 » Unit 9: Coordination Compounds

Objective Questions (MCQs)

Question
Multiple Choice
ID- 13832
BSEB, 2020 (A)

1. Coordination number of Cr in Na3[Cr(C2O4)3] is:

  • (A) 3
  • (B) 4
  • (C) 5
  • (D) 6
Multiple Choice
ID- 13852
BSEB, 2020 (A)

2. The oxidation number of Ni in [Ni(CO)4] is

  • (A) 0
  • (B) 2
  • (C) 3
  • (D) 4
Multiple Choice
ID- 13853
BSEB, 2019 (C)

3. Ligands are capable of donating atleast:

  • (A) one pair of electrons
  • (B) one electron
  • (C) three electron
  • (D) all of these
Multiple Choice
ID- 13856
BSEB, 2015

4. K2 [Fe(CN)6] is a/an:

  • (A) double salt
  • (B) complex salt
  • (C) acid
  • (D) base
Multiple Choice
ID- 13859
BSEB, 2012, 2016, 2020 (A)

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–
Multiple Choice
ID- 13861
BSEB, 2011

6. The number of possible isomers for the complex [Co (C2O4)2 (NH3)2]:

  • (A) 1
  • (B) 2
  • (C) 3
  • (D) 4
Multiple Choice
ID- 13862
BSEB, 2009, 2012

7. The oxidation state of nickel in [Ni(CO4)] is:

  • (A) 1
  • (B) 4
  • (C) 2
  • (D) 3
Multiple Choice
ID- 13912
BSEB, 2018 (C)

8. Ammonia gas when passed through CuSO4 solution gives deep blue colouration of:

  • (A) [Cu(NH3)4SO4
  • (B) [Cu(NH3)6SO4
  • (C) [Cu(NH3)2SO4
  • (D) CuSO4·4NH3
Multiple Choice
ID- 13913
BSEB, 2018 (C)

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+
Multiple Choice
ID- 13914
BSEB, 2019 (A)

10. The oxidation number of Fe in K4[Fe(CN)6] is:

  • (A) +2
  • (B) +3
  • (C) –2
  • (D) –3
Multiple Choice
ID- 13915
BSEB, 2019 (A)

11. K3 [Fe(CN)6] is a:

  • (A) Double Salt
  • (B) Complex compound
  • (C) Acidic Salt
  • (D) Common Salt
Multiple Choice
ID- 13916

12. Which of the following ligands form a chelate?

  • (A) Acetate
  • (B) Oxalate
  • (C) Cyanide
  • (D) Ammonia
Multiple Choice
ID- 13917

13. Which of the following is not a natural ligand?

  • (A) H2O
  • (B) NH3
  • (C) ONO
  • (D) Co2
Multiple Choice
ID- 13918

14. Which of the following ligands will not show chelation?

  • (A) EDTA
  • (B) DMG
  • (C) Ethene-1, 2-diamine
  • (D) SCN
Multiple Choice
ID- 13919

15. The correct IUPAC name of the coordination compound K3[Fe(CN)5NO] is:

  • (A) potassium pentacyanonitrosylferrate (II)
  • (B) potassium pentacyanonitroferrate (III)
  • (C) potassium nitritopentacyanoferrate (IV)
  • (D) potassium nitritepentacyanoiron (II)
Multiple Choice
ID- 13920

16. The current IUPAC name of the following compound is [Cr(NH3)5(NCS)] [ZnCl4]

  • (A) pentaammineisothiocyanatochromium (III) tetrachlo-rozincate (II)
  • (B) pentammineisothiocyanatezinc chloridechromate (III)
  • (C) pentaammineisothiocyanatochromate (II)
  • (D) isothiocyanatopentaamminechromium (II) zinc chlo-ride (IV)
Multiple Choice
ID- 13921

17. Correct formula of tetraamminechloronitroplatinum (IV) sulphate can be written as:

  • (A) [Pt (NH3)4 (ONO) Cl] SO4
  • (B) [Pt (NH3)4Cl2NO2]2 SO4
  • (C) [Pt (NH3)4 (NO2)Cl] SO4
  • (D) [PtCl (ONO)NH3(SO4)]
Multiple Choice
ID- 13922

18. Which of the following isomers will give white precipitate with BaCl2 solution?

  • (A) [Co(NH3)5SO4] Br
  • (B) [Co(NH3)5Br]SO4
  • (C) [Co(NH3)4(SO4)2] Br
  • (D) [Co(NH3)4Br(SO4)]
Multiple Choice
ID- 13923
BSEB, 2021 (A)

19. The oxidation number of Cr in the complex [Cr(H2O)4 Cl2]+ is:

  • (A) + 1
  • (B) + 3
  • (C) + 5
  • (D) + 6
Multiple Choice
ID- 13924
BSEB, 2021 (A)

20. The co-ordination number of Cr in K3[Cr(C2O4)3] is:

  • (A) 3
  • (B) 4
  • (C) 5
  • (D) 6
Multiple Choice
ID- 14000
BSEB, 2021 (A)

21. The co-ordination compound K4[Ni(CN)4], the oxidation state of nickel is:

  • (A) O
  • (B) + 1
  • (C) + 2
  • (D) – 1
Multiple Choice
ID- 14001
BSEB, 2021 (A)

22. The correct formula of hexamine platinum (IV) chloride is:

  • (A) [Pt(NH3)6] Cl4
  • (B) [Pt(NH3)6] Cl2
  • (C) [Pt(NH3)2] Cl3
  • (D) [Pt(NH3)6] Cl6
Multiple Choice
ID- 14002

23. The hybridisation involved in [Co(C2O4)3] 3– is

  • (A) sp3 d2
  • (B) sp3 d3
  • (C) dsp3
  • (D) d2 sp3
Multiple Choice
ID- 14003

24. The lowest value of paramagnetism is shown by:

  • (A) [Co(CN)6]3–
  • (B) [Fe(CN)6]3–
  • (C) [Cr(CN)6]3–
  • (D) [Mn(CN)6]3–
Multiple Choice
ID- 14004

25. The magnitude of magnetic moment (spin only) of [NiCl4]2– will be

  • (A) 2.82 BM
  • (B) 3.25 BM
  • (C) 1.23 BM
  • (D) 5.64 BM
Multiple Choice
ID- 14005

26. Which of the following has largest paramagnetism?

  • (A) [Cr(H2O)6]3+
  • (B) [Fe(H2O)6]2+
  • (C) [Cu(H2O)6]2+
  • (D) [Zn(H2O)2]2+
Multiple Choice
ID- 14006

27. Which of the following complexes will have tetrahedral shape?

  • (A) [PdCl4]2–
  • (B) [Pd (CN)4] 2–
  • (C) [Ni(CN)4]2–
  • (D) [NiCl4]2–
Multiple Choice
ID- 14007

28. Which of the following shall form an octahedral complex?

  • (A) d4 (low spin)
  • (B) d8 (high spin)
  • (C) d6 (low spin)
  • (D) None of these
Multiple Choice
ID- 14008

29. Among the following compounds which is both paramagnetic and coloured?

  • (A) K2Cr2O7
  • (B) [Co(SO)4]
  • (C) (NH4)2 [TiCl6]
  • (D) K3[Cu(CN)4]
Multiple Choice
ID- 14009

30. The spin only magnetic moment value of Cr (CO)6 is:

  • (A) 2.84 B.M.
  • (B) 4.90 B.M.
  • (C) 5.92 B.M.
  • (D) 0 B.M.
Multiple Choice
ID- 14010

31. The correct IUPAC name of [Pt(NH3)2Cl2] is:

  • (A) diamminedichloridoplatinum (II)
  • (B) diamminedichloridoplatinum (IV)
  • (C) diamminedichloridoplatinum (0)
  • (D) diamminedichloridoplatinum (VI)
Multiple Choice
ID- 14011

32. Indicate the complex ion which shows geometrical isomerism

  • (A) [Cr(H2O)4Cl2]2
  • (B) [Pt(NH3)3Cl]
  • (C) [Co(NH3)6]3+
  • (D) [Co(CN)5(NC)]3–
Multiple Choice
ID- 14012

33. A chelating agent has two or more than two donor atoms to bind to a single metal ion. Which of the following is not a chelating agent?

  • (A) Thiosulphato
  • (B) Oxalato
  • (C) Glycinato
  • (D) Ethane-1, 2-diamine
Multiple Choice
ID- 14106

34. What kind of isomerism exists between [Cr(H2O)5Cl] Cl2H2O (greyish-green)?

  • (A) Linkage isomerism
  • (B) Solvate isomerism
  • (C) Ionisation isomerism
  • (D) Coordination isomerism
Multiple Choice
ID- 14225

35. IUPAC name of [Pt(NH32 Cl (NO2)] is:

  • (A) platinum diaminechlornitrite
  • (B) chlornitrito-N-ammineplatinum (II)
  • (C) diamminechloridonitrito-N-platinum (II)
  • (D) diamminechloronitrito-N-platinate (II)
Multiple Choice
ID- 14226
BSEB, 2017 (A)

36. What is the coordination number of Cr in K3 [Cr(ox)3]

  • (A) 6
  • (B) 5
  • (C) 4
  • (D) 3
Multiple Choice
ID- 14227
BSEB, 2017 (A)

37. The EAN of cobalt in the complex ion [Co(en)2 Cl2]+ is.

  • (A) –27
  • (B) 36
  • (C) 33
  • (D) 35
Multiple Choice
ID- 14228
BSEB, 2016 (C)

38. Spelter is:

  • (A) Pure zinc
  • (B) Impure zinc
  • (C) Impure aluminium
  • (D) Impure merecury
Multiple Choice
ID- 14229
BSEB, 2017 (C)

39. The haybridisation of Fe in K4[Fe(CN)6] :

  • (A) dSp2
  • (B) Sp2
  • (C) d2Sp3
  • (D) Sp3d2
Multiple Choice
ID- 14230
BSEB, 2017 (C)

40. [Co(NH3)6]Cl3 is which type of complex compound:

  • (A) Cationic complex
  • (B) Anionic complex
  • (C) Neutral complex
  • (D) None of these
Multiple Choice
ID- 14231
BSEB, 2018 (A)

41. IUPAC name of H2 [PtCl6] is:

  • (A) Dihexa Chloroplatenic (IV) acid
  • (B) Hydrogen hexachloro plantinate (II)
  • (C) Hydrogen hexa chloride Pt (IV)
  • (D) Hydrogen hexa chlorido Pt (II)
Multiple Choice
ID- 14564

42. Among the following which are ambidentate ligands? (i) $\ce{SCN^–}$ (ii) $\ce{NO^–_3}$ (iii) $\ce{NO^–_2}$ (iv) $\ce{C2O^2–_4}$

  • (A) (i) and (iii)
  • (B) (i) and (iv)
  • (C) (ii) and (iii)
  • (D) (ii) and (iv)
Multiple Choice
ID- 14565

43. Which of the following species is not expected to be a ligand?

  • (A) $\ce{NO}$
  • (B) $\ce{NH^+_4}$
  • (C) $\ce{NH2CH2CH2NH2}$
  • (D) $\ce{CO}$