This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds – Quiz 25 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds Quiz 25 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is NOT a common neutral ligand in coordination compounds? A) Ammonia. B) Nitronium. C) Aqua. D) Carbonal. Show Answer Correct Answer: B) Nitronium. 2. What is the importance of isomerism in coordination compounds? A) Isomerism only affects the color of coordination compounds. B) Isomerism has no effect on the stability of coordination compounds. C) Isomerism is irrelevant to the biological activity of coordination compounds. D) Isomerism is important in coordination compounds as it influences their properties and reactivity. Show Answer Correct Answer: D) Isomerism is important in coordination compounds as it influences their properties and reactivity. 3. The coordination number in a coordination compound refers to: A) The number of donor atoms surrounding the central metal atom in a complex ion. B) The number of electrons in the atom. C) The number of donor atoms donated to the ligands. D) The number of metals present in the complex ion. Show Answer Correct Answer: A) The number of donor atoms surrounding the central metal atom in a complex ion. 4. Which one of the following complexes can exhibit geometrical isomerism? A) [Pt(NH3)2Cl2] (square planar). B) [Zn(NH3)2Cl2] (tetrahedral). C) [Cu(NH3)4]2+(square planar). D) [Co(NH3)5Cl]2+(octahedral). Show Answer Correct Answer: A) [Pt(NH3)2Cl2] (square planar). 5. Which type of valency corresponds to the oxidation number of the metal? A) Primary valency. B) Quaternary valency. C) Tertiary valency. D) Secondary valency. Show Answer Correct Answer: A) Primary valency. 6. Which type of isomerism is NOT possible for a tetrahedral geometry in coordination compounds? A) Geometric isomerism. B) Optical isomerism. C) Linkage isomerism. D) Ionisation isomerism. Show Answer Correct Answer: A) Geometric isomerism. 7. Name two types of ligands based on their donor atoms. A) Polydentate and Unidentate ligands. B) Monodentate and Bidentate ligands. C) Tridentate and Quadridentate ligands. D) Hexadentate and Octadentate ligands. Show Answer Correct Answer: B) Monodentate and Bidentate ligands. 8. Which causes maximum CFSE? A) High spin. B) Low spin. C) D5. D) D10. Show Answer Correct Answer: B) Low spin. 9. What will be shape of a K[CrF4] complex? A) Square pyramidal. B) Octahedral. C) Square planar. D) Tetrahedral. Show Answer Correct Answer: D) Tetrahedral. 10. What is the name of the complex [Fe(C2O4)3]3-? A) Tris(oxalato)iron(III). B) Tris(acetato)iron(III). C) Bis(oxalato)iron(II). D) Tris(citrate)iron(III). Show Answer Correct Answer: A) Tris(oxalato)iron(III). 11. Which scientist is credited with formulating ideas about the structures of coordination compounds? A) Alfred Werner. B) Marie Curie. C) Linus Pauling. D) Dmitri Mendeleev. Show Answer Correct Answer: A) Alfred Werner. 12. Which of the following is a characteristic of chelate ligands? A) They can form rings with the metal ion. B) They cannot form coordinate bonds. C) They bind through a single donor atom. D) They are always unidentate. Show Answer Correct Answer: A) They can form rings with the metal ion. 13. Which ligand forms the most stable complex with a metal ion? A) H2O. B) NH3. C) Cl-. D) CO. Show Answer Correct Answer: D) CO. 14. What is the significance of the chelate effect in coordination chemistry? A) It decreases the coordination number. B) It has no impact on complex formation. C) It enhances the stability of metal-ligand complexes. D) It increases the solubility of complexes. Show Answer Correct Answer: C) It enhances the stability of metal-ligand complexes. 15. What is the coordination number in coordination compounds? A) The number of ligands attached to the central metal ion. B) The total number of electrons in the compound. C) The charge of the complex ion. D) The number of isomers present. Show Answer Correct Answer: A) The number of ligands attached to the central metal ion. 16. Which of the following pairs represents linkage isomers? A) [Pd(P Ph3)2 (NCS)2] and [Pd(P Ph3)2(SCN)2]. B) [Co (NH3)5 NO3]SO4 and [Co(NH3)5SO4] NO3. C) [Pt Cl2(NH3)4]Br2 and [PtBr2(NH3)4]Cl2. D) [Cu(NH3)4] [PtCl4] and [Pt(NH3)4] [CuCl4]. Show Answer Correct Answer: A) [Pd(P Ph3)2 (NCS)2] and [Pd(P Ph3)2(SCN)2]. 17. When 4.7 moles of [Co(NH$_{3}$)$_{5}$Cl]Cl$_{2}$ is dissolved in water, how many moles of ions are in solution? A) 1.7. B) 2.7. C) 9.4. D) 14. E) 42. Show Answer Correct Answer: D) 14. 18. Which term describes molecules or ions that cannot be superimposed on their mirror images? A) Chiral. B) Achiral. C) Isotopic. D) Facial. Show Answer Correct Answer: A) Chiral. 19. Pick out the odd one out. A) CN$^{-}$. B) Cl$^{-}$. C) SO$_{4}$$^{2-}$. D) C$_{2}$O$_{4}$$^{2-}$. Show Answer Correct Answer: D) C$_{2}$O$_{4}$$^{2-}$. 20. Which of the following ligands is considered an ionisable ligand? A) Ammonia. B) Water. C) Chloride ion. D) Ethylene diamine. Show Answer Correct Answer: C) Chloride ion. 21. What type of hybridization occurs in the complex [Ni(CN)4]2-? A) Sp2. B) D2sp3. C) Dsp2. D) Sp3. Show Answer Correct Answer: C) Dsp2. 22. Which ligand binds to a metal atom through two donor atoms? A) NH3. B) H2O. C) CO. D) CN-. Show Answer Correct Answer: B) H2O. 23. Which of the following has square planar structure? A) [NiCl$_{4}$]$^{2-}$. B) [Ni(CO)$_{4}$]. C) [Ni(CN)$_{4}$]$^{2-}$. D) None of these. Show Answer Correct Answer: C) [Ni(CN)$_{4}$]$^{2-}$. 24. What does the molar ionic conductance measure? A) Conductance of 1 mole of ions. B) Melting point of a compound. C) Purity of a compound. D) Elemental composition. Show Answer Correct Answer: A) Conductance of 1 mole of ions. 25. What is the main product of the reaction between2-methyl propene with HBr A) 1-bromo butane. B) 1-bromo-2 methyl propane. C) 2-bromo butane. D) 2-bromo-2 methyl propane. Show Answer Correct Answer: D) 2-bromo-2 methyl propane. ← PreviousNext →Related QuizzesClass 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds Quiz 1Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds Quiz 2Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds Quiz 3Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds Quiz 4Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds Quiz 5Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds Quiz 6Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds Quiz 7Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds Quiz 8Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds Quiz 9Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books