12. Chloroquine is used as an antimalarial drug. Rank the three nitrogen atoms in decreasing (strongest to weakest) order of basicity.

(A) III ＞ I ＞ II
(B) I ＞ III ＞ II
(C) II ＞ I ＞ III
(D) II ＞ III ＞ I
(E) III ＞ II ＞ I

13. Predict the product for the following reaction. (A) (B) (C) (D) (E)

14. Which of the following reaction shown below give the WRONG product? (A) (B) (C)(D) (E)

15. Choose the     correct      statement below: (A) μ3-CO has higher IR stretching frequency (ν) than terminal CO does. (B) The Ru-C distance of Ru(CE)x complexes (E=O,S,Se,Te) is the shortest when E=oxygen. (C)Linear ν(N-O) in neutral molecules is usually lower than bent ν(N-O). (D) Ni(CO)3(PCl3) has higher CO stretching frequency than Ni(CO)3(PPh3) (E) π-back bonding from CO will increase the ν(CO) in metal carbonyl complexes

16. Which of the following specifies the      incorrect      magnetic moments for the complex? (A) 4.9 BM for [Cr(H2O)6]2+ (B) 2.8 BM for [Cr(CN)6]4- (C)5.9 BM for [Fe(CN)6]3- (D) 2.8 BM for [Ni(H2O)6]2+ (E) 1.7 BM for [Cu(en)2(H2O)2]2+

17. Three separate solutions of [M(H2O)6]2+ complexes (M= Fe, Ni, and Cu) were mislabeled. In order to identify them, UV-Vis spectra were taken. Solution A has three ligand field bands. Solution B and C have only one band. Upon addition of excess CN-, the single band of Solution B shifts to higher energy while that of Solution C becomes multiband. Which of the following is correct? (A) M=Fe for Solution C (B) M=Ni for Solution B (C)M=Cu for Solution A (D) M=Cu for Solution C (E) M=Ni for Solution A

18. Choose the      correct      statement below: (A) Pure silicon is an insulator at room temperature (B) Metal has fully filled conduction band (C)Adding phosphorus in silicon makes an n-type semiconductor (D) Germanium is a p-type dopant for silicon semiconductor (E) Adding n-type dopant lowers the Fermi level

19. Which of the following name is      incorrect     ? (A) dicyanotetraкis(methylisocyano)iron(II) for [Fe(CN)2(CH3CN)4] (B) pentaamminenitridocobalt(III) sulfate for [Co(N3)(NH3)5]SO4 (C)tris(2,2'-bipyridyl)nickel(II) bromide for [Ni(bipy)3]Br2 (D) sodium tris(oxalato)vanadate(III) for Na3[V(C2O4)3] (E) potassium tetrachloroferrate(III) for K[FeCl4]

20. The enthalpy change for a reaction can be obtained by: (A) slope from plot of lnKeq vs. T (B) slope from plot of ln(1/Keq) vs. T (C)slope from plot of ln(1/Keq) vs. 1/T (D) slope from plot of lnKeq vs. 1/T (E) -RT(lnKeq)

21. What is the bond order and magnetism for Rh2(μ-CH3COO)4Cl2: (A) 3 bonds, paramagnetism (B) 2.5 bonds, paramagnetism (C)3 bonds, diamagnetism (D) 1.5 bonds, paramagnetism (E) 2 bonds, paramagnetism

22. Which statement about the thiocyanate ion, SCN-, is true? (A) Its Lewis structure contains an unpaired electron (B) Its shape is bent like that of H2O (C)Only two correct resonance structures can be drawn (D) There are more than two sigma bonds in the ion (E) The formal charge on S can be +1, 0, -1

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