Quiz  /  Coordination Compounds Class 11 MCQ Questions With Answers

  • 1. 
    Complex metal ions shown in diagram below is made up of

  • ligands
  • transition metals
  • different ligands
  • ligands and transition metal

  • 2. 
    Which type of defect has the presence of cations in the interstitial site?

  • Schottky defect
  • Frenkel defect
  • Metal deficiency defect
  • Vacancy defect

  • 3. 
    The oxidation state of Cr in [Cr(NH3)4Cl2]+ is

  • +3
  • +2
  • +1
  • 0

  • 4. 
    How many d orbitals are there in a given sublevel?

  • 1
  • 3
  • 5
  • 7

  • 5. 
    The sum of coordination number and oxidation number of the metal M in the complex [M(en)2(C2O4)]Cl (where (en) is ethylenediamine) is

  • 9
  • 6
  • 7
  • 8

  • 6. 
    The IUPAC name of the complex [Co (NH3)4 Cl2] Cl is

  • dichloro tetraammine cobalt (III) chloride
  • tetraammine dichloro cobalt (III) chloride
  • tetraammine dichloro cobalt (II) chloride
  • tetraammine dichloro cobalt (IV) chloride

  • 7. 
    Which type of bond form between metal and non-metal?

  • molecular bond
  • ionic bond
  • crystal

  • 8. 
    The IUPAC name of K2 [Ni (CN)4] is

  • Potassium tetracyanatonickelate (II)
  • Potassium tetracyanonickelate (III)
  • Potassium tetracyanonickel (III)
  • Potassium tetracyanatonickel (II)

  • 9. 
    What is a ligand

  • An atom, molecule or ion that forms a dative covalent bond to a central metal ion in a complex.
  • An atom, molecule or ion that accepts a pair of electron from a central metal ion in a complex.
  • A central metal ion with one or more covalent bonds to it
  • A d-block element that has a partially filled d subshell

  • 10. 
    Among the ligands NH3, en, CN- and CO, the correct order of field strength is

  • NH3 < en < CN– < CO
  • CN– < NH3 < CO < en
  • en < CN–< NH3 < CO
  • CO < NH3 < en < CN–

  • 11. 
    A complex compound in which the oxidation number of a metal is zero is

  • K4 [Fe (CN)6]
  • K3 [Fe (CN)6]
  • [Ni (CO)4]
  • [Pl (NH3 )4]Cl2

  • 12. 
    How are electrons indicated in this diagram?

  • Coefficients
  • letters
  • superscripts
  • There are no electrons in this atom

  • 13. 
    A ligand can also be regarded as

  • Lewis acid
  • Bronsted base
  • Lewis base
  • Bronsted acid

  • 14. 
    What type of bond forms when metal ions bonding to ligands with 2 electrons?

  • covalent bond
  • Ionic bond
  • coordinate covalent bond

  • 15. 
    Which of the following species is not expected to be a ligand

  • NO
  • NH4+
  • NH2CH2CH2NH2
  • CO

  • 16. 
    IUPAC name of [Pt(NH3)2Cl(NO2)] is

  • Platinum diamminechloronitrite (II)
  • Chloronitrito-N-ammineplatinum
  • Diamminechloridonitrito-N-platinum (II)
  • Diamminechloronitrito-N-plantinate (II)

  • 17. 
    In the complex [E(en)2(C2O4)]NO2 (where (en) is ethylenediamine) _______are the coordination number and the oxidation state of the element ‘E’ respectively.

  • 6 and 2
  • 2 and 2
  • 4 and 3
  • 6 and 3
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