Class Xii Coordination Compounds Test

30 Questions | Total Attempts: 51

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Class Xii Coordination Compounds Test

TIME ALLOTTED: 60 MINUTES NEGATIVE MARKING OF -1 MARKS FOR EVERY INCORRECT ANSWER ALL THE BEST


Questions and Answers
  • 1. 
    Which one of the following shows maximum paramagnetic character?
    • A. 

      [Fe(CN)6]3-

    • B. 

      [Fe(CN)6]4-

    • C. 

      [Cr(H2O)6]3+

    • D. 

      [Cu(H2O)6]2+

  • 2. 
    Which of the following will give maximum number of isomers?
    • A. 

      [Co(NH3)4Cl2]+

    • B. 

      [Ni(en)(NH3)4]2+

    • C. 

      [Ni(C2O4)(en)2]-2

    • D. 

      [Cr(SCN)2(NH3)4]+

  • 3. 
    Which statement is incorrect
    • A. 

      [Ni(CO)4] - Tetrahedral, paramagnetic

    • B. 

      [Ni(CN)4]2-  Square planar, diamagnetic

    • C. 

      [Ni(CO)4]  Tetrahedral, diamagnetic

    • D. 

      [NiCl4]2-  Tetrhaedral, paramagnetic

  • 4. 
    Which of the following will exhibit maximum ionic conductivity
    • A. 

      K4[Fe(CN)6]

    • B. 

      [Co(NH3)6]Cl3

    • C. 

      [Cu(NH3)4]Cl2

    • D. 

      [Ni(CO)4]

  • 5. 
    CN- is a strong field ligand. This is due to the fact that
    • A. 

      It forms high spin complexes with metal species

    • B. 

      It give negative charge

    • C. 

      It is psedohalide

    • D. 

      It can easily accept electrons from metal species

  • 6. 
    Considering H2O as a weak field ligand, the number of unpaired electrons in [Mn(H2O)6]2+ will be:  (atomic number of Mn is 25)
    • A. 

      4

    • B. 

      3

    • C. 

      5

    • D. 

      2

  • 7. 
    Which of the following does not have a metal-carbon bond?
    • A. 

      [Ni(CO)4]

    • B. 

      Al(OC2H5)3

    • C. 

      C2H5MgBr

    • D. 

      K[Pt(C2H4)Cl3]

  • 8. 
    Which one of the following is an inner orbital complex as well as diamagnetic in behavior:
    • A. 

      [Zn(NH3)6]2+

    • B. 

      [Ni(NH3)6]2+

    • C. 

      [Cr(NH3)6]3+

    • D. 

      [Co(NH3)6]3+

  • 9. 
    The aqueous solution containing which of the following ions will be colourless?
    • A. 

      Fe2+

    • B. 

      Mn2+

    • C. 

      Ti3+

    • D. 

      Sc3+

  • 10. 
    If Δo < P, the correct electronic configuration for d4 system will be-
    • A. 

      T42g e0g

    • B. 

      T32g e1g

    • C. 

      T02g e4g

    • D. 

      T22g e2g

  • 11. 
    Which one of the following pairs represents stereoisomerism?
    • A. 

      Linkage isomerism and Geometric isomerism

    • B. 

      Chain isomerism and rotational isomerism

    • C. 

      Optical isomerism and Geometric isomerism

    • D. 

      Structural isomerism and Geometric isomerism

  • 12. 
    Select the diamagnetic species among the following
    • A. 

      [Ni(CN)4]2-

    • B. 

      [NiCl4]2-

    • C. 

      [CoCl4]2-

    • D. 

      [CoF6]2-

  • 13. 
    The IUPAC name of the coordination compound K3[Fe(CN)6] is
    • A. 

      Potassium hexacyanoferrate (II)

    • B. 

      Potassium hexacyanoferrate (III)

    • C. 

      Potassium hexacyanoiron (II)

    • D. 

      Tripotassium hexacyanoiron (II)

  • 14. 
    Which of the following compounds shows optical isomerism?
    • A. 

      [Cu(NH3)4]2+

    • B. 

      [ZnCl4]2-

    • C. 

      [Cr(C2O4)3]3-

    • D. 

      [Co(CN)6]3-

  • 15. 
    [Co(NH3)4(NO2)2]Cl exhibits
    • A. 

      Linkage isomerism, geometrical isomerism and optical isomerism

    • B. 

      Linkage isomerism, ionization isomerism and optical isomerism

    • C. 

      Linkage isomerism, ionization isomerism and geometrical isomerism

    • D. 

      Ionization isomerism, geometrical isomerism and optical isomerism

  • 16. 
    In which of the following coordination entities the magnitude of Δo (CFSE in octahedral field) will be maximum?
    • A. 

      [Co(CN)6]3-

    • B. 

      [Co(C2O4)3]3-

    • C. 

      [Co(H2O)6]3+

    • D. 

      [Co(NH3)6]3+

  • 17. 
    Which of the following complex does not show optical isomerism?
    • A. 

      [Co(en)3]3+

    • B. 

      [Co(en)2Cl2]+

    • C. 

      [Co(NH3)3Cl3]

    • D. 

      [Co(en)Cl2(NH3)2]+

  • 18. 
    Which of the following complex ion is not expected to absorb visible light?
    • A. 

      [Ni(H2O)6]2+

    • B. 

      [Ni(CN)4]2-

    • C. 

      [Cr(NH3)6]3+

    • D. 

      [Fe(H2O)6]2+

  • 19. 
    Which one of the following is an outer orbital complex and exhibits paramagnetic behavior?
    • A. 

      [Cr(NH3)6]3+

    • B. 

      [Co(NH3)6]3+

    • C. 

      [Ni(NH3)6]2+

    • D. 

      [Zn(NH3)6]2+

  • 20. 
    A magnetic moment of 1.73 BM will be shown by
    • A. 

      [CoCl6]4-

    • B. 

      [Cu(NH3)4]2+

    • C. 

      [Ni(CN)4]2-

    • D. 

      TiCl4

  • 21. 
    What is the magnetic moment of [FeF6]3-
    • A. 

      5.92

    • B. 

      5.49

    • C. 

      2.34

    • D. 

      4

  • 22. 
    The IUPAC name for the complex [Co(CO2)(NH3)5]Cl2 is
    • A. 

      Pentaamine nitrito-N-cobalt (II) chloride

    • B. 

      Pentaamine nitrito-N- cobalt(III) chloride

    • C. 

      Nitrito-N-pentaaminecobalt(II) chloride

    • D. 

      Nitrito-N-pentaaminecobalt(II) chloride

  • 23. 
    Fac-Mer isomerism is associated with which one of the following complexes?   (M is central metal)
    • A. 

      [M(AA)2]

    • B. 

      [MA3B3]

    • C. 

      [M(AA)3]

    • D. 

      [M(ABCD)]

  • 24. 
    In solid CuSO4.5H2O , copper is coordinated to how many water molecules?
    • A. 

      5

    • B. 

      4

    • C. 

      1

    • D. 

      2

  • 25. 
    Hybridization of Ni in Ni(CO)4
    • A. 

      Dsp2

    • B. 

      Dsp3

    • C. 

      D2sp3

    • D. 

      Sp3

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