This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds Quiz 15 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Transition elements have ..... A) Incompletely filled s orbitals. B) Incompletely filled p orbitals. C) Incompletely filled d orbitals. D) None of the above. Show Answer Correct Answer: C) Incompletely filled d orbitals. 2. Which of the following is a characteristic of a tetrahedral complex? A) It is always a homoleptic complex. B) It has a coordination number of 4. C) It is always diamagnetic. D) It has a coordination number of 6. Show Answer Correct Answer: B) It has a coordination number of 4. 3. Coordination number of Fe in [Fe(CN)6]4-? A) 4. B) 5. C) 6. D) 2. Show Answer Correct Answer: C) 6. 4. Which one of the following is the correct order of fieldstrength of ligands in spectrochemical series? A) I-< Cl-< F-< H2O < CN-. B) F-< H2O < I-< CN-< Cl-. C) CN-< I-< F-< Cl-< H2O. D) H2O < F-< CN-< Cl-< I-. Show Answer Correct Answer: A) I-< Cl-< F-< H2O < CN-. 5. In the complex [Co(NH$_{3}$)$_{5}$Cl]Cl, the coordination number is A) 3. B) 5. C) 6. D) 4. Show Answer Correct Answer: C) 6. 6. When CO becomes a ligand, the correct name to use is ..... A) Carbon monoxide. B) Carbonyl. C) Carbono. D) None of the above. Show Answer Correct Answer: B) Carbonyl. 7. Identify the 3d metal in the following diamagnetic complex anion:M(CN)$_{6}$$^{4-}$. What is the oxidation state and d-electron count for your metal? A) Fe$^{2+}$, d$^{6}$. B) Fe$^{3+}$, d$^{5}$. C) Ni$^{2+}$, d$^{8}$. D) Ni$^{2+}$, d$^{10}$. Show Answer Correct Answer: B) Fe$^{3+}$, d$^{5}$. 8. According to Werner's theory, which valacy is Non-Ionisable? A) Primary. B) Secondary. C) Tertiary. D) Quarternary. Show Answer Correct Answer: B) Secondary. 9. What are optical isomers that cannot be superimposed on one another called? A) Enantiomers. B) Isotopes. C) Facial isomers. D) Meridional isomers. Show Answer Correct Answer: A) Enantiomers. 10. What is the IUPAC nomenclature used for in coordination compounds? A) Determining the color. B) Naming the compounds systematically. C) Calculating the coordination number. D) Predicting isomerism. Show Answer Correct Answer: B) Naming the compounds systematically. 11. [NiCl$_{4}$]$^{2-}$ is paramagnetic and therefore its geometry is A) Pyramidal. B) Bi-pyramidal. C) Tetrahedral. D) Square planar. Show Answer Correct Answer: C) Tetrahedral. 12. Who is the Father of coordination Chemistry? A) Albert Einstein. B) Max Planck. C) Alfred Werner. D) Linus Pauling. Show Answer Correct Answer: C) Alfred Werner. 13. Which coordination entity is chiral (optically active) out of the following two:(a) cis-[CrCl2 (ox)2]3-(b) trans-[CrCl2 (ox)2]3-? A) Both are non-chiral. B) (b) trans-[CrCl2 (ox)2]3-. C) Both are chiral. D) (a) cis-[CrCl2 (ox)2]3-. Show Answer Correct Answer: D) (a) cis-[CrCl2 (ox)2]3-. 14. Which of the following ions has the highest magnetic moment value? A) [Cr(H2O)6]3+. B) [Fe(H2O)6]2+. C) [Zn(H2O)6]2+. D) None of the above. Show Answer Correct Answer: B) [Fe(H2O)6]2+. 15. Dsp$^{2}$ hybridization represents A) Octahedral geometry. B) Square-planar geometry. C) Trigonal-bipyramidal geometry. D) Square-pyramidal geometry. Show Answer Correct Answer: B) Square-planar geometry. 16. A complex with a spin magnetic moment of 4.9 BM (Bohr Magnetons) indicates the presence of how many unpaired electrons? A) 0. B) 2. C) 4. D) 5. Show Answer Correct Answer: C) 4. 17. What type of isomerism can occur in octahedral complexes? A) Geometrical isomerism. B) Optical isomerism. C) Linkage isomerism. D) All of the above. Show Answer Correct Answer: D) All of the above. 18. IUPAC name of [Cr(H2O)6]Cl3? A) Chromium(III) chloride. B) Hexaaquachromium(III) chloride. C) Chromium hexahydrate. D) Chromium aqua chloride. Show Answer Correct Answer: B) Hexaaquachromium(III) chloride. 19. What is the significance of the ligand field theory? A) Ligand field theory is significant for explaining the electronic structure and properties of transition metal complexes. B) Ligand field theory helps in predicting the solubility of ionic salts. C) Ligand field theory is essential for understanding the reactivity of alkanes. D) Ligand field theory is crucial for determining the color of organic compounds. Show Answer Correct Answer: A) Ligand field theory is significant for explaining the electronic structure and properties of transition metal complexes. 20. What suffix is used for the name of a metal in a complex anion? A) -ium. B) -ate. C) -ide. D) -ite. Show Answer Correct Answer: B) -ate. 21. Which is the simplest model we can use to explain the magnetic properties of coordination compounds? A) Crystal-Field model. B) Valence Bond model. C) Ligand-Field model. D) Thailand's top model. Show Answer Correct Answer: B) Valence Bond model. 22. Which of the following neutral ligands has a special name when used in coordination compounds? A) Methane (CH4). B) Water (H2O). C) Oxygen (O2). D) Nitrogen (N2). Show Answer Correct Answer: B) Water (H2O). 23. What is the bond angle in an octahedral complex? A) 45 degrees. B) 60 degrees. C) 90 degrees. D) 120 degrees. Show Answer Correct Answer: C) 90 degrees. 24. Which of the following is the most stable complex species? A) [Fe(CO)5]. B) [Fe(CN)6]3-. C) [Fe(C2O4)3]3-. D) [Fe(H2O)6]3+. Show Answer Correct Answer: C) [Fe(C2O4)3]3-. 25. The number of geometrical isomers shown by square planar complex[Ma2b2] is A) 0. B) 2. C) 1. D) 3. Show Answer Correct Answer: B) 2. ← 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