35.How many types of oxidation numbers are for the hydrogen atom in the following compounds? H₂O₂,CH₄,H₂O, NaBH₄,H₂,HNO₃, CaH₂, and NH₃
(A)1
(B) 2
(C) 3
(D) 4
(E) 5

36. Which statement of the following about hydrogen bonding is not true? (A)Hydrogen bonds can be intermolecular (occurring between separate molecules) or intramolecular (occurring among parts of the same molecule) (B)Hydrogen atom in molecules is attached by a highly electronegative atom (N, O, F) (C)An unpaired electron at least resides on the highly electronegative atom (N, O, F) (D)Due to the higher boiling point of H2O than HF, a H-bond between two H2O molecules is stranger than a H-bond between two H-F molecules. (E)The interactive way of the hydrogen bond is the same as that of dipole-dipole intramolecular interaction

37.According to the solubility rules, how many of the following spices should be soluble in water? Hg2Cl2, Ag2S, Ag2CO3, PbSO4, Na2S (A) 0 (B) 1 (C) 2 (D) 3 (E) 4

38.Construct a table of Crystal Field Stabilization Energy (CFSE) for all d" electronic configuration in tetrahedral complexes under a strong field, Which d" configuration could be diamagnetic? (A) d1 (B)d2 (C)d4 (D) d6 (E) d8

39. Reactions of a series of substituted pyridines with BFs shows the order of Lewis basicity: Pyridine ＞2-methylpyridine ＞ 2,6-dimethylpyridine＞2-t-butylpyridine. Which of the folowing effects induces this order? (A) 1-strain (B) B-strain (C) F-strain (D) inductive effect (E) leveling effect

40.Consider the following reactions, which one of the following will have the smallest equilibrium constant at 298 K? (A) CaO(s) + CO2(g)→CaCO3(s) △G°=-131.1kJ (B) 2Hg(g) + O2(g)→ 2HgO(s) △G°=-180.8 kJ (C) 3O2(g)→2O3(g) △G°= +326 kJ (D) 2H2O(aq)→2H2(s) + O2(g) △G°=+ 475.4 kJ (E) More information is needed to determine.

41.Regarding the "Quantum Mechanics and Atomic Structure", which one of the following statements is incorrect? (A)The discovery of"Blackbody Radiation" payes a foundation for scientists to find the quantization of atomic energy. (B)The "Aufbau principle" states that the proper way of placement of electrons in atomic orbitals is from the lowest energy level up and shall also obey Hund's rule. (C)The"Zero Point Energy" states that the energy level is lowest in this state of the atomic orbitals. However, it is not equal to zero. (D)The "Heisenberg Indeterminacy Principle: states that one can't make a completely accurate measurement of both the position (x) and its moment (mv) of a particle. (E) "Hund's rule" implies that while electrons place into degenerated orbitals, they will pair each other first.

42. Which one of the following statements is incorrect for "Kinetics"? (A) The orders for the reactions in Kinetics have nothing to do with the coefficient of the reaction. (B) It is possible that a non-integer reaction order can be found in a reaction. (C) The derivation of the first-order reaction leads to C= (Co: intial concentration；C: concentration at moment t； t: reaction time) (D) A rather useful concept of "half-life " can be derived from the concept of the zero-order reaction. (E) The relative stabilities of the reactant and product have nothing to do with the reaction rate.

43. Pick the correct molecular structure(s) as predicted by the VSEPR theory? (A)I(B)I,I(C)I,II,III(D)I,II,III,IV(E)I,II,III,IV,V

44. Pick the correct one from the following statements about the electrochemical cell described below? (A) The cell reaction is spontaneous with a standard cell potential of 3.18 V. (B) The cell reaction is spontaneous with a standard cell potential of -2.90 V. (C) The cell reaction is nonspontaneous with a standard cell potential of -2.90 V. (D) The cell reaction is nonspontaneous with a standard cell potential of -3.18 V. (E) The cell is at equilibrium.

45. When pure water (pH = 7 at 25℃) is heated, it will induce: (A) [H+]＞[OH-] (B) The water is not neutral. (C) pH is still 7 (D) [H+]＜[OH-] (E) None of these.

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