This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds Quiz 5 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What type of isomerism occurs when ligands can bind through different atoms? A) Geometric isomerism. B) Linkage isomerism. C) Optical isomerism. D) Coordination isomerism. Show Answer Correct Answer: B) Linkage isomerism. 2. Which of the following is listed first when writing the formula of a mononuclear coordination entity? A) The ligand. B) The central atom. C) The charge. D) The counter ion. Show Answer Correct Answer: B) The central atom. 3. Which is a double salt? A) Carnallite. B) Potassium ferrocyanide. C) Potassium ferricyanide. D) Nessler's reagent. Show Answer Correct Answer: A) Carnallite. 4. Which type of isomerism arises due to different spatial arrangements of ligands? A) Structural isomerism. B) Stereoisomerism. C) Linkage isomerism. D) Ionization isomerism. Show Answer Correct Answer: B) Stereoisomerism. 5. According to Werner's theory, what was the basis for explaining the difference in properties of certain nitrogen-containing organic substances? A) Isomerism. B) Electronegativity. C) Acidity. D) Solubility. Show Answer Correct Answer: A) Isomerism. 6. What is the formula for dichloridobis(ethane-1, 2-diamine)cobalt(III) chloride? A) [CoCl2(en)2]Cl. B) [Co(NH3)4(H2O)Cl]Cl2. C) K2[Zn(OH)4]. D) Ni(CO)4. Show Answer Correct Answer: A) [CoCl2(en)2]Cl. 7. Who was the first Swiss chemist to win the Nobel Prize for work on the linkage of atoms and the coordination theory? A) Alfred Werner. B) Marie Curie. C) Linus Pauling. D) Robert Hooke. Show Answer Correct Answer: A) Alfred Werner. 8. Which theory explains the color of coordination compounds? A) VBT. B) CFT. C) EAN rule. D) Octet rule. Show Answer Correct Answer: B) CFT. 9. How do you name the complex [Ni(CO)4]? A) Tetracarbonylnickel(0). B) Pentacarbonylnickel(I). C) Nickelcarbonyl(I). D) Dicarbonylnickel(0). Show Answer Correct Answer: A) Tetracarbonylnickel(0). 10. Which rule is followed when naming coordination compounds? A) The ligand is named first in both positive and negative entities. B) The cation is named first in both positive and negative entities. C) The anion is always named first. D) The charge is named first. Show Answer Correct Answer: B) The cation is named first in both positive and negative entities. 11. What is the type of compound formed by coordinating molecules by sharing electrons? A) Coordination compound. B) Covalent compound. C) Metallic compound. D) Ionic compound. Show Answer Correct Answer: A) Coordination compound. 12. Which of the following ligands is considered a weak field ligand? A) Cyanide (CN-). B) Ammonia (NH3). C) Fluoride (F-). D) Acetate (CH3COO-). Show Answer Correct Answer: D) Acetate (CH3COO-). 13. The value of 'spin only' magnetic moment for one of the following configurations is 2.84 BM. The correct one is: A) D$^{4}$ (in strong field ligand in octahedral complexes). B) D$^{4}$ (in weak field ligand in octahedral complexes). C) D$^{3}$ (in weak as well as strong field ligand in octahedral complexes). D) D$^{5}$ (in strong field ligand in octahedral complexes). Show Answer Correct Answer: A) D$^{4}$ (in strong field ligand in octahedral complexes). 14. What is a ligand in coordination chemistry? A) A ligand is a catalyst that speeds up chemical reactions. B) A ligand is a molecule or ion that binds to a central metal atom in coordination chemistry. C) A ligand is a solvent used in coordination chemistry. D) A ligand is a type of metal atom in coordination chemistry. Show Answer Correct Answer: B) A ligand is a molecule or ion that binds to a central metal atom in coordination chemistry. 15. Which of the following complexes is a homoleptic complex? A) [Co(NH3)4Cl2]+. B) [Co(NH3)5Cl]Cl2. C) [Co(NH3)4(NO2)2]. D) [Co(NH3)6]3+. Show Answer Correct Answer: D) [Co(NH3)6]3+. 16. Identify homoleptic complex among the following. A) [Co(NH$_{3}$)$_{6}$]$^{3+}$. B) [Co(NH$_{3}$)$_{3}$Cl$_{3}$]$^{3+}$. C) CoCl$_{3}$. D) [Co(en)Cl$_{2}$]$_{2}$(SO$_{4}$)$_{3}$. Show Answer Correct Answer: A) [Co(NH$_{3}$)$_{6}$]$^{3+}$. 17. Which of the following is considered a ligand in a coordination compound? A) Only large molecules. B) Only metal ions. C) Ions or molecules bound to the central atom/ion. D) Only water molecules. Show Answer Correct Answer: C) Ions or molecules bound to the central atom/ion. 18. The sum of coordination number and oxidation number of the metal M in the complex [M(en)$_{2}$ C$_{2}$O$_{4}$] Cl are A) 6. B) 7. C) 8. D) 9. Show Answer Correct Answer: D) 9. 19. What happens to the coordination number in a dissociation reaction? A) Increases. B) Unchanged. C) Decreases. D) Changes in oxidation state. Show Answer Correct Answer: C) Decreases. 20. Dextro-rotatory and Laevo-rotatory are A) Diastereomers. B) Cis/trans isomers. C) Fac/mer isomers. D) Enantiomers. Show Answer Correct Answer: D) Enantiomers. 21. The IUPAC name of K2 [Ni (CN)4] is A) Potassium tetracyanatonickelate (II). B) Potassium tetracyanonickelate (III). C) Potassium tetracyanonickel (III). D) Potassium tetracyanatonickel (II). Show Answer Correct Answer: A) Potassium tetracyanatonickelate (II). 22. Explain the significance of oxidation state in naming complexes. A) The oxidation state is significant in naming complexes as it indicates the charge of the metal, differentiating between complexes with similar ligands. B) Oxidation state only affects the color of the complex. C) The oxidation state is only important for organic compounds. D) The oxidation state is irrelevant in naming complexes. Show Answer Correct Answer: A) The oxidation state is significant in naming complexes as it indicates the charge of the metal, differentiating between complexes with similar ligands. 23. Among the following ions which one has the highest paramagnetism? A) [Cr(H$_{2}$O)$_{6}$]$^{+3}$. B) [Fe(H$_{2}$O)$_{6}$]$^{+2}$. C) [Cu(H$_{2}$O)$_{6}$]$^{+2}$. D) [Zn(H$_{2}$O)$_{6}$]$^{+2}$. Show Answer Correct Answer: B) [Fe(H$_{2}$O)$_{6}$]$^{+2}$. 24. Provide the molecular formula for the complex [Fe(CN)6]3-. A) FeC6N6. B) FeC4N6. C) FeC6N5. D) FeC5N6. Show Answer Correct Answer: A) FeC6N6. 25. Explain the concept of ligand field stabilization energy (LFSE). A) LFSE is the energy released when ligands bind to a metal center. B) LFSE refers to the total energy of a complex without considering ligand effects. C) LFSE is the energy associated with the movement of electrons in the d-orbitals. D) LFSE is the energy difference due to d-orbital splitting in a ligand field. Show Answer Correct Answer: D) LFSE is the energy difference due to d-orbital splitting in a ligand field. ← 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 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