This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds – Quiz 23 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds Quiz 23 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which ligand is ambidentate? A) NH3. B) H2O. C) NO2-. D) CN-. Show Answer Correct Answer: C) NO2-. 2. What is the difference between a homoleptic and a heteroleptic complex? A) Homoleptic complexes are always larger than heteroleptic complexes. B) Homoleptic complexes contain no ligands; heteroleptic complexes contain one type of ligand. C) Homoleptic complexes can have multiple types of ligands; heteroleptic complexes cannot. D) Homoleptic complexes have one type of ligand; heteroleptic complexes have multiple types of ligands. Show Answer Correct Answer: D) Homoleptic complexes have one type of ligand; heteroleptic complexes have multiple types of ligands. 3. EAN (Effective Atomic Number) of a metal carbonyl M(CO)$_{x}$ is 36. If atomic number of metal M is 26, what is the value of x? A) 4. B) 8. C) 5. D) 6. Show Answer Correct Answer: C) 5. 4. Which statement is true about naming ionic compounds containing complex ions? A) You never have to indicate the number of cations and anions in the name. B) You must always indicate the number of cations and anions in the name. C) Only the number of cations is indicated. D) Only the number of anions is indicated. Show Answer Correct Answer: A) You never have to indicate the number of cations and anions in the name. 5. Coordination isomerism arises from the interchange of ligands between which entities? A) Only cationic entities. B) Only anionic entities. C) Cationic and anionic entities of different metal ions. D) Neutral entities. Show Answer Correct Answer: C) Cationic and anionic entities of different metal ions. 6. In optical isomerism, what is the difference between dextrorotatory (d) and laevorotatory (l) forms? A) D rotates the plane of polarized light to the right, l to the left. B) D rotates the plane of polarized light to the left, l to the right. C) D absorbs light, l emits light. D) D is always achiral, l is always chiral. Show Answer Correct Answer: A) D rotates the plane of polarized light to the right, l to the left. 7. What is the oxidation number of the central metal atom in the coordination compound[Pt(NH$_{3}$)$_{3}$Cl]Cl? A) -1. B) 0. C) +1. D) +2. Show Answer Correct Answer: D) +2. 8. Which of the following is a structural isomerism type in coordination compounds? A) Optical isomerism. B) Linkage isomerism. C) Geometric isomerism. D) Coordination isomerism. Show Answer Correct Answer: D) Coordination isomerism. 9. How can the stability of a coordination compound be affected? A) By increasing the size of the metal ion. B) By changing the temperature of the solution. C) By altering the oxidation state of the central metal ion. D) By using only organic ligands. Show Answer Correct Answer: C) By altering the oxidation state of the central metal ion. 10. The number of geometrical isomers expected for octahedral complex [Mabcdef] is A) 2. B) 5. C) 15. D) 30. Show Answer Correct Answer: C) 15. 11. Which of the following complexes is expected to be paramagnetic? A) [Ni(CO)4]. B) [Fe(H2O)6]3+. C) [Cu(NH3)4]2+. D) [CoCl4]2-. Show Answer Correct Answer: B) [Fe(H2O)6]3+. 12. Vitamin B12 is a coordination compound of A) Iron. B) Magnesium. C) Cobalt. D) Nickel. Show Answer Correct Answer: C) Cobalt. 13. Which of the following is a coordination compound? A) NaCl. B) NH4Cl. C) K4[Fe(CN)6]. D) H2O. Show Answer Correct Answer: C) K4[Fe(CN)6]. 14. Which of the following is NOT mentioned as a coordination compound in biological systems? A) Chlorophyll. B) Haemoglobin. C) Vitamin B12. D) Glucose. Show Answer Correct Answer: D) Glucose. 15. What is the molecular formula for the complex [Cr(H2O)6]Cl3? A) CrH12Cl3O6. B) CrH12Cl4O6. C) CrH12Cl2O5. D) CrH10Cl3O6. Show Answer Correct Answer: A) CrH12Cl3O6. 16. The oxidation number of cobalt in K[Co(CO)$_{4}$] is A) +1. B) +3. C) -1. D) -3. Show Answer Correct Answer: C) -1. 17. What are some applications of coordination compounds in medicine? A) Applications of coordination compounds in medicine include drug delivery systems, imaging agents, and therapeutic agents for cancer and anemia. B) They serve as catalysts in industrial processes. C) Coordination compounds are used for food preservation. D) Coordination compounds are primarily used in agriculture. Show Answer Correct Answer: A) Applications of coordination compounds in medicine include drug delivery systems, imaging agents, and therapeutic agents for cancer and anemia. 18. Which of the following complex is diamagnetic in nature A) [Nicl4]2-. B) [NiCO4]. C) [CoF6]3-. D) [ NiCN4]2-. Show Answer Correct Answer: D) [ NiCN4]2-. 19. What is the coordination number of a complex with a tetrahedral geometry? A) 2. B) 8. C) 6. D) 4. Show Answer Correct Answer: D) 4. 20. How do you determine the coordination number of a complex? A) The coordination number is the total number of protons in the central metal ion. B) The coordination number is the total number of ligand atoms bonded to the central metal ion. C) The coordination number is the number of electrons in the outer shell of the metal ion. D) The coordination number is determined by the size of the ligands used in the complex. Show Answer Correct Answer: B) The coordination number is the total number of ligand atoms bonded to the central metal ion. 21. What is the IUPAC name for [Cu(NH3)4]SO4? A) Copper(II) sulfate tetraamine. B) Tetraamminecopper(II) sulfate. C) Copper(II) ammonium sulfate. D) Tetraaminecopper(I) sulfate. Show Answer Correct Answer: B) Tetraamminecopper(II) sulfate. 22. High spin complexes having coordination number ' 6 ' are usually formed through A) Sp$^{3}$d$^{2}$ hybridisation. B) D$^{2}$sp$^{3}$ hybridisation. C) Sp$^{3}$d hybridisation. D) Sp$^{3}$ hybridisation. Show Answer Correct Answer: A) Sp$^{3}$d$^{2}$ hybridisation. 23. In [NiCl$_{4}$]$^{2-}$, what is the geometry of the complex? A) Octahedral. B) Tetrahedral. C) Square planar. D) Linear. Show Answer Correct Answer: B) Tetrahedral. 24. How do you predict the color of a coordination compound? A) The color is determined solely by the temperature of the solution. B) The color of a coordination compound is predicted based on the metal, ligands, and their interactions, particularly d-orbital splitting. C) The color is based on the size of the metal ion only. D) The color is influenced by the pH of the solution without regard to ligands. Show Answer Correct Answer: B) The color of a coordination compound is predicted based on the metal, ligands, and their interactions, particularly d-orbital splitting. 25. Which of the following best defines a coordination entity? A) A central metal atom or ion bonded to a fixed number of ions or molecules. B) A molecule with only covalent bonds. C) An atom with no surrounding ligands. D) A compound with only ionic bonds. Show Answer Correct Answer: A) A central metal atom or ion bonded to a fixed number of ions or molecules. ← 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