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COORDINATION COMPOUNDS MCQs

Total Questions : 25 | Page 2 of 3 pages
Question 11. The correct IUPAC name of [Pt(NH3)2Cl2] is
  1.    Diamminedichloridoplatinum (II)
 Discuss Question
Answer: Option A. -> Diamminedichloridoplatinum (II)
Question 12. The coordination entity of K2[NiCl4]
  1.    NiCl4
  2.    K2[NiCl4
  3.    [NiCl4]2-
  4.    Ni2+
 Discuss Question
Answer: Option C. -> [NiCl4]2-
Question 13. When two or more stable compounds in solution are mixed together and allowed to evaporate, in certain cases there is a possibility for the formation of
  1.    coordination compounds
  2.    mixed salt
  3.    double salt
  4.    both a and c
 Discuss Question
Answer: Option D. -> both a and c
Question 14. In the complex [Co(NH3)5Cl]Cl, the coordination number is
  1.    3
  2.    5
  3.    6
  4.    4
 Discuss Question
Answer: Option C. -> 6
Question 15. Among the ligands NH3, en, CN- and CO, the correct order of field strength is
  1.    NH3 < en < CN– < CO
  2.    CN– < NH3 < CO < en
  3.    en < CN–< NH3 < CO
  4.    CO < NH3 < en < CN–
 Discuss Question
Answer: Option A. -> NH3 < en < CN– < CO
Question 16. What is a ligand
  1.    An atom, molecule or ion that forms a dative covalent bond to a central metal ion in a complex.
  2.    An atom, molecule or ion that accepts a pair of electron from a central metal ion in a complex.
  3.    A central metal ion with one or more covalent bonds to it
  4.    A d-block element that has a partially filled d subshell
 Discuss Question
Answer: Option A. -> An atom, molecule or ion that forms a dative covalent bond to a central metal ion in a complex.
Question 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
  1.    6 and 2
  2.    2 and 2
  3.    4 and 3
  4.    6 and 3
 Discuss Question
Answer: Option D. -> 6 and 3
Question 18. A complex compound in which the oxidation number of a metal is zero is
  1.    K4 [Fe (CN)6]
  2.    K3 [Fe (CN)6]
  3.    [Ni (CO)4]
  4.    [Pl (NH3 )4]Cl2
 Discuss Question
Answer: Option C. -> [Ni (CO)4]
Question 19. 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
  1.    9
  2.    6
  3.    7
  4.    8
 Discuss Question
Answer: Option A. -> 9
Question 20. Which type of defect has the presence of cations in the interstitial site?
  1.    Schottky defect
  2.    Frenkel defect
  3.    Metal deficiency defect
  4.    Vacancy defect
 Discuss Question
Answer: Option B. -> Frenkel defect

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