This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds Quiz 6 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which statement about transition metals is TRUE? A) They have only one stable oxidation state. B) Their d-orbitals are completely filled. C) They exhibit variable oxidation states. D) They cannot form colored compounds. Show Answer Correct Answer: C) They exhibit variable oxidation states. 2. Octahedral has coordination number A) 6. B) 4. C) 3. D) 5. Show Answer Correct Answer: A) 6. 3. When a coordination complex is an anion, what suffix is added to the name of the central metal atom? A) -ide. B) -ite. C) -ate. D) -ous. Show Answer Correct Answer: C) -ate. 4. [Cr(NH$_{3}$)$_{6}$ ][Co(CN)$_{6}$] is an example of A) Linkage Isomerism. B) Coordination Isomerism. C) Ionisation Isomerism. D) Solvate Isomerism. Show Answer Correct Answer: B) Coordination Isomerism. 5. Which of the following complexes can exhibit optical isomerism? (en = H$_{2}$N-CH$_{2}$-CH$_{2}$-NH$_{2}$ and is bidentate) A) Cis-Co(NH$_{3}$)$_{4}$Cl$_{2}$. B) Trans-Co(en)$_{2}$Br$_{2}$. C) Cis-Co(en)$_{2}$Cl$_{2}$. D) Co(NH$_{3}$)$_{3}$Cl$_{3}$. E) None of these. Show Answer Correct Answer: C) Cis-Co(en)$_{2}$Cl$_{2}$. 6. Define bidentate and chelating ligands with examples. A) Bidentate ligands:Ethylenediamine (en); Chelating ligands:EDTA (Ethylenediaminetetraacetic acid). B) Monodentate ligands:Water (H2O). C) Polydentate ligands:Acetylacetonate (acac). D) Chelating ligands:Ammonia (NH3). Show Answer Correct Answer: A) Bidentate ligands:Ethylenediamine (en); Chelating ligands:EDTA (Ethylenediaminetetraacetic acid). 7. 1-chlorobutane reacts with alcoholic KOH to form A) 1-butene. B) 1-butanol. C) 2-butene. D) 2-butanol. Show Answer Correct Answer: A) 1-butene. 8. How is the oxidation number of the central atom in a complex defined? A) As the number of ligands attached to the central atom. B) As the charge it would carry if all the ligands were removed along with the electron pairs shared with the central atom. C) As the total number of atoms in the coordination sphere. D) As the type of donor groups attached to the metal. Show Answer Correct Answer: B) As the charge it would carry if all the ligands were removed along with the electron pairs shared with the central atom. 9. Which compound is formed by the reaction between potassium hexacyanocobaltate(III) and nickel(II) sulfate? A) Nickel(II) tetrahydroxozincate(II). B) Nickel(II) tetraammine dichlorido cobalt(III) ion. C) Potassium trioxalatoaluminate(III). D) Potassium tetrahydroxozincate(II). Show Answer Correct Answer: B) Nickel(II) tetraammine dichlorido cobalt(III) ion. 10. Which of the metal ions in the following complex ions has a d$^{5}$ electron configuration? A) V(H$_{2}$O)$_{6}$$^{2+}$. B) Mo(NH$_{3}$)$_{6}$$^{3+}$. C) Co(CN)$_{4}$$^{-}$. D) Fe(CN)$_{6}$$^{3-}$. E) RhCl$_{6}$$^{4-}$. Show Answer Correct Answer: D) Fe(CN)$_{6}$$^{3-}$. 11. Hemoglobin is a coordination compound containing which metal ion? A) Cu. B) Fe. C) Co. D) Zn. Show Answer Correct Answer: B) Fe. 12. What is the charge of ethylenediamine? A) 1. B) 0. C) 2. D) None of the above. Show Answer Correct Answer: B) 0. 13. What is the oxidation number of cobalt in [Co(NH3)6]3+? A) +3. B) 0. C) +2. D) +4. Show Answer Correct Answer: A) +3. 14. Cisplatin, a coordination compound, is widely used as a: A) Fertilizer. B) Anticancer drug. C) Fuel additive. D) Food preservative. Show Answer Correct Answer: B) Anticancer drug. 15. Select the correct IUPAC name for:[FeF$_{4}$(OH$_{2}$)$_{2}$]$^{-}$ A) Diaquatetrafluoroiron(III) ion. B) Diaquatetrafluoroferrate(III) ion. C) Diaquatetrafluoroiron(I) ion. D) Diaquatetrafluoroferrate(I) ion. Show Answer Correct Answer: B) Diaquatetrafluoroferrate(III) ion. 16. What is the name given to a coordination compound in which the ligands are different from each other? A) Heteroleptic compound. B) Homoleptic compound. C) Chelate compound. D) Isomeric compound. Show Answer Correct Answer: D) Isomeric compound. 17. Which theory, along with VBT, is used to explain the electronic structure of coordination compounds? A) CFT (Crystal Field Theory). B) VSEPR Theory. C) Hybridization Theory. D) Band Theory. Show Answer Correct Answer: A) CFT (Crystal Field Theory). 18. Which of the following complexes exhibits optical isomerism? A) [NiCl4]2-. B) [Cu(NH3)4]2+. C) [Co(NH3)3Cl3]. D) [Cr(C2O4)3]3-. Show Answer Correct Answer: D) [Cr(C2O4)3]3-. 19. What is the main difference between a double salt and a complex? A) Double salts dissociate into simple ions in water, while complexes do not. B) Double salts are formed from only one compound, while complexes are formed from two. C) Complexes dissociate into simple ions in water, while double salts do not. D) Double salts are always organic, while complexes are inorganic. Show Answer Correct Answer: A) Double salts dissociate into simple ions in water, while complexes do not. 20. According to Werner's theory, what are the two types of linkages shown by metals in coordination compounds? A) Primary and secondary. B) Ionic and covalent. C) Direct and indirect. D) Positive and negative. Show Answer Correct Answer: A) Primary and secondary. 21. Which hybridisation type is associated with a square planar distribution of hybrid orbitals in coordination compounds? A) Sp3. B) Dsp2. C) Sp3d. D) Sp2d2. Show Answer Correct Answer: B) Dsp2. 22. What is the coordination number of Co(en)$_{3}$$^{3+ }$ ..... A) 3. B) 3+. C) 6. D) 4. Show Answer Correct Answer: C) 6. 23. What is the coordination number and hybridisation type for an octahedral geometry in coordination compounds? A) 4, sp3. B) 5, sp3d. C) 6, sp3d2 or d2sp3. D) 4, dsp2. Show Answer Correct Answer: C) 6, sp3d2 or d2sp3. 24. Which type of isomerism is observed in a coordination compound with cis and trans geometric isomers? A) Structural isomerism. B) Coordination isomerism. C) Geometrical isomerism. D) Optical isomerism. Show Answer Correct Answer: C) Geometrical isomerism. 25. Which type of complex is formed when inner d-orbitals are utilized for hybridization, resulting in all electrons being paired? A) Outer orbital complex. B) High spin complex. C) Inner orbital complex. D) Paramagnetic complex. Show Answer Correct Answer: C) Inner orbital complex. ← 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 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