This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds Quiz 2 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following statements about ligands is true? A) Only anionic ligands can coordinate. B) Ligands can be neutral or charged. C) All ligands are bidentate. D) Ligands do not affect the geometry of the complex. Show Answer Correct Answer: B) Ligands can be neutral or charged. 2. A complex with the composition [MA2B2]X2 is found to have no geometrical isomers. Both A and B are monodentate ligands. The structure of the complex is A) Linear. B) Square planar. C) Tetrahedral. D) Octahedral. Show Answer Correct Answer: C) Tetrahedral. 3. How do you determine the overall charge of a coordination complex? A) The overall charge is determined by the number of ligands only. B) The overall charge is the sum of the atomic numbers of the metal and ligands. C) The overall charge is the sum of the oxidation state of the metal and the charges of the ligands. D) The overall charge is always zero regardless of the ligands. Show Answer Correct Answer: C) The overall charge is the sum of the oxidation state of the metal and the charges of the ligands. 4. The unpaired electrons in Ni(CO)4 are A) 0. B) 1. C) 3. D) 4. Show Answer Correct Answer: A) 0. 5. The complexes with coordination number 4 A) Only Square planer geometry. B) Only Tetrahedral geometry. C) Either Tetrahedral or square planar geometry. D) Octahedral geometry. Show Answer Correct Answer: C) Either Tetrahedral or square planar geometry. 6. Pentamminechloroplatinum (IV) chloride ionises to give A) Two ions. B) Three ions. C) Five ions. D) Four ions. Show Answer Correct Answer: D) Four ions. 7. What is the trend in atomic radius from left to right across a period? A) Atomic radius remains the same. B) Atomic radius decreases. C) Atomic radius increases. D) None of the above. Show Answer Correct Answer: B) Atomic radius decreases. 8. Which of the following is an example of a complex compound? A) KCl.MgCl2.6H2O. B) CoCl3(NH3)6. C) K2SO4.Al2(SO4)3.24H2O. D) FeSO4.(NH4)2SO4.6H2O. Show Answer Correct Answer: B) CoCl3(NH3)6. 9. What is the correct IUPAC name for [Cu(NH$_{3}$)$_{4}$]SO$_{4}$? A) Tetraamminecopper(II) sulfate. B) Tetraamminecopper(I) sulfate. C) Tetraamminesulfatecopper(II). D) Tetraamminesulfatecopper(I). Show Answer Correct Answer: A) Tetraamminecopper(II) sulfate. 10. EAN of Ni in Ni(CO)4? A) 28. B) 36. C) 18. D) 10. Show Answer Correct Answer: B) 36. 11. Which of the following species has the electron configuration [Ar]3d$^{4}$? A) Ti. B) V$^{2+}$. C) Cr$^{2+}$. D) Fe$^{2+}$. Show Answer Correct Answer: C) Cr$^{2+}$. 12. Which of the following is NOT a type of stereoisomerism in coordination compounds? A) Geometrical isomerism. B) Optical isomerism. C) Linkage isomerism. D) None of the above. Show Answer Correct Answer: C) Linkage isomerism. 13. Which form of isomerism is known as 'hydrate isomerism' in coordination compounds? A) Linkage isomerism. B) Solvate isomerism. C) Geometrical isomerism. D) Optical isomerism. Show Answer Correct Answer: B) Solvate isomerism. 14. What is optical isomerism and how does it apply to coordination compounds? A) Optical isomerism is the existence of non-superimposable mirror images (enantiomers) in coordination compounds, affecting their optical activity. B) Optical isomerism involves the formation of ionic bonds in coordination compounds. C) Optical isomerism refers to the color change in coordination compounds. D) Optical isomerism is the ability of compounds to conduct electricity. Show Answer Correct Answer: A) Optical isomerism is the existence of non-superimposable mirror images (enantiomers) in coordination compounds, affecting their optical activity. 15. The number of of geometrical isomers shown by the square planar complex[Mabcd] is A) O. B) 1. C) 2. D) 3. Show Answer Correct Answer: D) 3. 16. Which of the following is a chelating ligand? A) Chloride (Cl-). B) Water (H2O). C) Ammonia (NH3). D) Ethylenediamine (en). Show Answer Correct Answer: D) Ethylenediamine (en). 17. The charge of ammonia is ..... A) 1+. B) 0. C) 1-. D) 2+. Show Answer Correct Answer: B) 0. 18. CN-is a strong field ligand. This is due to the fact that A) It carries negative charge. B) It is a pseudohalide. C) It can accept electrons from metal species. D) It forms high spin complexes with metal species. Show Answer Correct Answer: B) It is a pseudohalide. 19. Outer Orbital complexes having ..... hybridization A) Sp3. B) Dsp2. C) Sp3d2. D) D2Sp3. Show Answer Correct Answer: C) Sp3d2. 20. What determines the geometry of a coordination compound? A) Oxidation state. B) Primary valencies. C) Secondary valency. D) Ligand size. Show Answer Correct Answer: C) Secondary valency. 21. The IUPAC name of compound Na$_{3}$ [Co(ONO)$_{6}$] A) Hexanitritocobalt (III) sodium. B) Sodium cobalt nitrite. C) Sodium hexanitrocobaltate (III). D) Sodium hexanitrito-O-cobaltate (III). Show Answer Correct Answer: D) Sodium hexanitrito-O-cobaltate (III). 22. Which of the following is an example of ionisation isomerism? A) [Co(NH3)6][Cr(CN)6]. B) [Co(NH3)5(SO4)]Br and [Co(NH3)5Br]SO4. C) [Cr(NH3)6][Co(CN)6]. D) [Co(NH3)5(NO2)]Cl2. Show Answer Correct Answer: B) [Co(NH3)5(SO4)]Br and [Co(NH3)5Br]SO4. 23. Dichloridobis(ethane-1, 2-diamine)cobalt(III) ion is A) [CuCl$_{2}$ (en)$_{2}$ ]$^{+}$. B) [CoCl$_{2}$ (en)$_{3}$ ]$^{+}$. C) [CoCl$_{2}$ (en)$_{2}$ ]$^{+}$. D) [CoCl$_{3}$ (en)$_{2}$ ]$^{+}$. Show Answer Correct Answer: C) [CoCl$_{2}$ (en)$_{2}$ ]$^{+}$. 24. Compound having same molecular formula but gives different ions in solution is called A) Linkage Isomerism. B) Hydrate isomerism. C) Ionisation isomerism. D) Coordination isomerism. Show Answer Correct Answer: C) Ionisation isomerism. 25. Which ligand is represented by the symbol 'NO2' in coordination compounds? A) Nitrate. B) Nitro. C) Nitrite. D) Nitronium. Show Answer Correct Answer: B) Nitro. ← PreviousNext →Related QuizzesClass 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds Quiz 1Class 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 10Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books