Coordination compounds. Valence bond theory : tests = Комплексные соединения. Теория валентных связей : тесты
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Тематика:
Химические элементы и их соединения
Год издания: 2018
Кол-во страниц: 52
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Вид издания:
Учебно-методическая литература
Уровень образования:
ВО - Бакалавриат
Артикул: 787072.01.99
The study guide contains individual test tasks, which can be used to control student achievements in the topic "Coordination compounds. Valence bond theory".
The tasks are developed for the first-year students of engineering degree programs, who study the discipline "General and Inorganic Chemistry" and "The additional chapters of Inorganic Chemistry" in English.
The study guide was prepared at the Department of Inorganic Chemistry.
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ОКСО:
- ВО - Бакалавриат
- 18.03.01: Химическая технология
- ВО - Магистратура
- 18.04.01: Химическая технология
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The Ministry of Education and Science of the Russian Federation Kazan National Research Technological University COORDINATION COMPOUNDS. VALENS BOND THEORY Tests Kazan KNRTU Press 2018
UDC 546; 54-386 The study guide is published in accordance with the decision of the Faculty of Chemical Technologies Reviewers: Ph. D. (in chemistry), Full Prof. N. B. Berezin Ph. D. (in chemistry), Full Prof. M. B. Gazizov Contributors: Assoc. Prof. М. М. Petrova Full Prof. Е. М. Zueva Full Prof. А. М. Kuznetsov Coordination compounds. Valence bond theory : tests / сontributors: M. M. Petrova, E. M. Zueva, A. M. Kuznetsov; The Ministry of Education and Science of the Russian Federation, Kazan National Research Technological University. – Kazan : KNRTU Press, 2018. – 52 p. The study guide contains individual test tasks, which can be used to control student achievements in the topic "Coordination compounds. Valence bond theory". The tasks are developed for the first-year students of engineering degree programs, who study the discipline "General and Inorganic Chemistry" and "The additional chapters of Inorganic Chemistry" in English. The study guide was prepared at the Department of Inorganic Chemistry. UDC 546; 54-386
INDIVIDUAL TASKS Variant 1 Task 1 1. The chemical formula of tetraamminezinc(II) chloride is А) [Zn(NH3)3]Cl2; B) [Zn(NH3)2]Cl2; C) [Zn(NH3)]Cl2; D) [Zn(NH3)4]Cl2. 2. The [Co(CN)6]3− complex is called А) hexacyanocobaltate(III) ion; B) hexacyanocobaltate(II) ion; C) hexacyanocobalt(III) ion; D) hexacyanocobalt(II) ion. 3. The compound containing a cationic complex is А) [Pt(NH3)2Cl2]; B) K3[Fe(CN)6]; C) Na[Al(OH)4]; D) [Co(H2O)6]Cl2. 4. In the [Co(CN)6]3− complex, the coordination number and the charge of coordination center are equal to А) 3, +6; B) 6, +3; C) 6, −3; D) 3, −6. 5. In the [Co(NH3)5Cl]Cl2 compound, the ligands are А) chloride ions; B) cobalt ions; C) water molecules; D) ammonia molecules. 6. Specify the products of the chemical reaction Al2(SO4)3 + KOHexcess → А) Al(OH)3; B) K2SO4; C) K3[Al(OH)6]; D) [Al(H2O)6]2(SO4)3. 7. The expression for the overall instability constant of the [Ag(NH3)2]+ complex is А) [Ag(NH3)2 +]/[Ag+][NH3]2; B) [Ag+][NH3]/[Ag(NH3)2 +]; C) [Ag+][2NH3]/[Ag(NH3)2 +]; D) [Ag+][NH3]2/[Ag(NH3)2 +]. 8. According to the values of the overall stability constants (see Appendix), the most stable complex is А) [Cd(NH3)4]2+; B) [Fe(CN)6]3−; C) [Al(OH)4]−; D) [HgCl4]2−.
Task 2. Determine the coordination geometry of the diamagnetic [Pt(NH3)4]2+complex. 1. Specify the valence electron configuration of the coordination center in this complex. А) 6s2; B) 5d8; C) 5d86s2; D) 5d10. 2. The number of unpaired electrons located on the coordination center is А) 8; B) 10; C) 2; D) 0. 3. The orbital hybridization type of the coordination center is А) d2sp3; B) sp3; C) sp; D) dsp2. 4. What is the coordination geometry of this complex? А) linear; B) square planar; C) tetrahedral; D) octahedral. Variant 2 Task 1 1. The chemical formula of potassium hexacyanoferrate(III) is А) K3[Fe(CN)6]; B) K4[Fe(CN)6]; C) K[Fe(CN)4]; D) Na[Fe(NCS)4]. 2. The [Ag(NH3)2]+ complex is called А) ion diammineargentat(I); B) ion diammineargentat(II); C) ion diamminesilver(II); D) ion diamminesilver(I). 3. The compound containing an anionic complex is А) [Pt(NH3)2Cl2]; B) [Ti(H2O)6]Cl3; C) [Ni(NH3)6]SO4; D) K3[FeF6]. 4. In the [Ag(NH3)2]+ complex, the coordination number and the charge of coordination center are equal to А) 2, +1; B) 1, +1; C) 2, +3; D) 3, +1.
5. In the K3[Ag(S2O3)2] compound, the ligands are А) thiosulphate ions; B) silver ions; C) sulfide ions; D) potassium ions. 6. Specify the products of the chemical reaction Cr(OH)3 + HCl + Н2О → А) Cr(OH)2Cl; B) CrOHCl2; C) the reaction does not proceed; D) [Cr(H2O)6]Cl3. 7. The expression for the overall stability constant of the [Co(CN)6]3− complex is А) [Co(CN)6] 3−]/[Co3+][CN−]6; B) [Co3+][CN−]/[[Co(CN)6] 3−]; C) [Co(CN)6] 3−]/[Co3+][6CN−]; D) [Co3+][CN−]6/[Co(CN)6] 3−]. 8. According to the values of the overall stability constants (see Appendix), the least stable complex is А) [Cd(NH3)4]2+; B) [Fe(CN)6]3−; C) [Al(OH)4]−; D) [HgCl4]2−. Task 2 Determine the coordination geometry of [Ti(H2O)6]3+ complex. 1. Specify the valence electron configuration of the coordination center in this complex. А) 4s2; B) 3d04s1; C) 3d24s2; D) 3d1. 2. The number of unpaired electrons located on the coordination center is А) 1; B) 4; C) 2; D) 0. 3. The orbital hybridization type of the coordination center is А) d2sp3; B) sp3; C) sp; D) dsp2. 4. What is the coordination geometry of this complex? А) linear; B) square planar; C) tetrahedral; D) octahedral.
Variant 3 Task 1 1. The chemical formula of hexaaquatitanium(III) chloride is А) [Ti(H2O)4]Cl3; B) [Ti(H2O)6]Cl4; C) [Ti(H2O)6]Cl3; D) [Ti(H2O)4]Cl4. 2. The [Cr(OH)4]− complex is called А) tetrahydrochromium(I) ion; B) tetrahydroxochromate(III) ion; C) tetrahydrochromate(IV) ion; D) tetrahydrochromium(III) ion. 3. The compound containing a cationic complex is А) [Pt(NH3)2Cl2]; B) [Cd(NH3)4]Cl2; C) K[Cr(OH)4]; D) Na2[Ni(CN)4]. 4. In the [Cr(OH)4]− complex, the coordination number and the charge of coordination center are equal to А) 4, +3; B) 1, +3; C) 4, −1; D) 4, −4. 5. In the K[Cr(OH)4] compound, the ligands are А) hydroxide ions; B) chromium ions; C) water molecules; D) potassium ions. 6. Specify the products of the chemical reaction CrCl3 + KOHexcess → А) K3[Cr(OH)6]; B) KCl; C) Cr(OH)3; D) [Cr(H2O)6]Cl3. 7. The expression for the overall instability constant of the [Cr(OH)4]− complex is А) [Cr(OH)4 −]/[Cr3+][OH−]4; B) [Cr(OH)4 −]/[Cr3+][4OH−]; C) [Cr3+][OH−]4/[Cr(OH)4 −]; D) [Cr3+][OH−]/[Cr(OH)4 −]. 8. According to the values of the overall stability constants (see Appendix), the most stable complex is А) [Co(NH3)6]3+; B) [HgBr4]2−; C) [AuBr2]−; D) [CdI4]2−.