This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds – Quiz 18 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 9 Coordination Compounds Quiz 18 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How do ligands affect the color of coordination compounds? A) Ligands affect the color of coordination compounds by altering the d-orbital splitting, which changes the wavelengths of light absorbed. B) Ligands affect the color by altering the atomic mass of the metal. C) Ligands only change the size of the coordination complex. D) Ligands have no effect on the color of coordination compounds. Show Answer Correct Answer: A) Ligands affect the color of coordination compounds by altering the d-orbital splitting, which changes the wavelengths of light absorbed. 2. What is the primary characteristic of a bidentate ligand in coordination compounds? A) It can only bond to one metal ion. B) It can only bond with organic compounds. C) It can form two bonds with a single metal ion. D) It is always a negatively charged ion. Show Answer Correct Answer: C) It can form two bonds with a single metal ion. 3. What primarily determines the shape (geometry) of a coordination compound? A) The number of electrons in the central metal. B) The coordination number. C) The type of atoms in the ligands. D) The overall charge of the compound. Show Answer Correct Answer: B) The coordination number. 4. EDTA is a ..... ligand A) Monodentate. B) Bidentate. C) Tetradentate. D) Hexadentate. Show Answer Correct Answer: D) Hexadentate. 5. The strong field ligand is A) SCN$^{-}$. B) I$^{-}$. C) S$^{2-}$. D) NO$_{2}$$^{-}$. Show Answer Correct Answer: D) NO$_{2}$$^{-}$. 6. How many ions are produced from the complex Co(NH3)6Cl2 in the solution? A) 6. B) 4. C) 3. D) 2. Show Answer Correct Answer: C) 3. 7. Co-ordination compounds have great importance in biological systems. In this context, which statement is incorrect? A) Carboxypeptidase A is an enzyme and contains zinc. B) Haemoglobin is the red pigment of blood and contains iron. C) Cyanocobalmin is B-12 and contains cobalt. D) Chlorophylls are green pigments in plants and contain calcium. Show Answer Correct Answer: D) Chlorophylls are green pigments in plants and contain calcium. 8. In the coordination compound 'Tetraammineplatinum(II) Tetrachloroplatinate(II)', what is the oxidation state of platinum? A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: B) 2. 9. What is the term for ligands that can bind through more than one donor atom? A) Unidentate. B) Bidentate. C) Polydentate. D) Ambidentate. Show Answer Correct Answer: C) Polydentate. 10. What type of hybridization is typically found in octahedral coordination complexes? A) Sp2. B) Sp. C) D2sp3. D) Sp3. Show Answer Correct Answer: C) D2sp3. 11. Which of the following options are correct for [Fe(CN)6 ]3-complex?(i) Possess d2sp3 hybridisation(ii) Possess sp3d2 hybridisation(iii) It is paramagnetic(iv) It is diamagnetic A) (i) and (iii). B) (ii) and (iii). C) (i) and (iv). D) (ii) and (iv). Show Answer Correct Answer: A) (i) and (iii). 12. The co-ordination number of cobalt in thecomplex [Co(en)2 Br2]Cl2 is A) 5. B) 4. C) 6. D) 2. Show Answer Correct Answer: C) 6. 13. According to the postulates of Werner for coordinationcompounds A) Secondary valency is ionizable. B) Primary valency is ionizable. C) Primary and secondary valencies are non-ionizable. D) Only primary valency is non-ionizable. Show Answer Correct Answer: B) Primary valency is ionizable. 14. What is the formula for potassium tetrahydroxidozincate(II)? A) K2[Zn(OH)4]. B) K3[Al(C2O4)3]. C) [Co(NH3)4(H2O)Cl]Cl2. D) [CoCl2(en)2]I2. Show Answer Correct Answer: A) K2[Zn(OH)4]. 15. What is the IUPAC name for [Co(NH3)5(CO3)]Cl? A) Pentaamminecarbonatocobalt(III) chloride. B) Diamminechloridonitrito-N-platinum(II). C) Potassium trioxalatochromate(III). D) Dichloridobis(ethane-1, 2-diamine)cobalt(III) chloride. Show Answer Correct Answer: A) Pentaamminecarbonatocobalt(III) chloride. 16. What is the name of the complex [Cr(NH3)3(H2O)3]Cl3? A) Triamminetritriaquachromium(III) chloride. B) Triaquatriamminechromium(II) chloride. C) Triamminetriaquachromium(II) chloride. D) Triaquatriamminechromium(III) chloride. Show Answer Correct Answer: A) Triamminetritriaquachromium(III) chloride. 17. The coordination entity of K$_{2}$[NiCl$_{4}$] A) NiCl$_{4}$. B) K$_{2}$[NiCl$_{4}$. C) [NiCl$_{4}$]$^{2-}$. D) Ni$^{2+}$. Show Answer Correct Answer: C) [NiCl$_{4}$]$^{2-}$. 18. Arrange the following in order of their stabilities.1 [Cu(NH3)4]+22 [Cu(en)2]+23 Cu(trien)]+2 A) 1, 2, 3. B) 3, 2, 1. C) 2, 3, 1. D) 1, 3, 2. Show Answer Correct Answer: B) 3, 2, 1. 19. [Pt(NH$_{3}$)$_{2}$Cl(NO$_{2}$)] is named A) Diaminechloridonitrito-N-platinum(II). B) Diamminechloridonitrito-N-platinum(II). C) Diamminechloridonitrito-N-platinate(II). D) Diamminechloridonitrito-O-platinum(II). Show Answer Correct Answer: B) Diamminechloridonitrito-N-platinum(II). 20. What is the IUPAC name for [Ag(NH3)2][Ag(CN)2]? A) Amminesilver(I) dicyanide. B) Silver diamminedicyanide. C) Diamminesilver(I) dicyanidoargentate(I). D) Dicyanidodiammineargentate(I). Show Answer Correct Answer: C) Diamminesilver(I) dicyanidoargentate(I). 21. What is the property of a coordination compound where the metal ion shows a normal valency of 4+? A) Isomerism. B) Oxidation state. C) Chelation. D) Coordination number. Show Answer Correct Answer: B) Oxidation state. 22. What is the charge on the complex ion in [Fe(H$_{2}$O)$_{6}$]$^{2+}$? A) +1. B) +2. C) +3. D) +4. Show Answer Correct Answer: B) +2. 23. EDTA is commonly used for: A) Softening water. B) Catalyzing polymerization. C) Producing pigments. D) Generating electricity. Show Answer Correct Answer: A) Softening water. 24. In the complex [E(en)2(C2O4)]NO2 (where (en) is ethylenediamine) ..... are the coordination number and the oxidation state of the element 'E' respectively. A) 6 and 2. B) 2 and 2. C) 4 and 3. D) 6 and 3. Show Answer Correct Answer: D) 6 and 3. 25. What is the oxidation state of iron in [Fe(C2O4)3]3-? A) +2. B) +1. C) 0. D) +3. Show Answer Correct Answer: D) +3. ← 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