33.The orbital wavefunction for the state (n =3, l = 1, and = O) of the hydrogen atom, is expressed as

  Where σ = r/a₀ and a₀ is the Bohr radius. How many nodal surfaces will appear in the wave function?
(A)0
(B)1
(C)2
(D)3
(E) 4

1.Which of the following choices represent(s) a pair of resonance forms? (A) both (a) and (b) (B) both (b) and (c) (C) both (a) and (c) (D) All of the above

2.Which sequence correctly ranks the following protons in order of increasing acidity? (A)1＜2＜3(B)2＜3＜1 (C)3＜1＜2(D)3＜2＜1 (E)2＜1＜3

3.Which of the following statements about π molecular orbitals is/are correct?(A) π molecular orbitals are cylindrically symmetric. (B)Most of the electron density in a π molecular orbital is centered above and below the internuclear axis. (C) When two atoms are connected by a double bond, both of these bonds are π bonds. (D) Both statements B and C are correct. (E) Statements A, B, and C are all correct.

4.Which of the following compounds is not a constitutional isomer of a compound with an empirical formula C3H7O and a formula mass of 118.164?(A)(B)(C)(D)(E)

5. Identify the correct IUPAC name for the following structure. (A) 3-s-Butyl-1-iodo-2-methylhexane (B) 1-lodo-2,4-dimethyl-3-propylhexane (C) 4-(2-1odo-1-methylethyl)-3-methyIheptane (D) 2,4-Dimethyl-1-iodo-3-propylhexane.

6.The structures below are _______. (A) not isomers (B) conformation isomers (C) structural isomers (D) cis-trans isomers (E) both B and D.

7. When pyridine is treated with a mixture of nitric and sulfuric acids, the major product is _____. (A) 2-nitropyridine (B) 3-nitropyridine (C) 4-nitropyridine (D) both A and C

8. Which sequence of steps below describes the best synthesis of 5-oxohexanoic acid starting with 1-methylcyclopentan-1-ol?(A) 1. Conc. KMnO4；2. Dry gaseous HBr； 3. Mg/ether； 4. CO2 (B) 1. Conc. KMnO4；2. CH3MgBr/ether； 3. H3O+ (C) 1. H2SO4 and heat； 2. O3； 3. (CH3)2S (D) 1. H2SO4 and heat； 2. Conc. KMnO4； 3. LiAlH4； 4. H3O+ (E) 1. H2SO4 and heat； 2. Conc. KMnO4；

9. What compound is produced when cyclohexene is treated with concentrated KMnO4?(A) adipic acid (B) benzoic acid (C) succinic acid (D) cyclohexacarboxylic acid (E) caproic acid

10. Which of the following represents the highest occupied molecular orbital for the conjugated pi system in the structure below? (A)(B)(C)(D)

115年 - 115 國立中興大學_學士後醫學系公費生招生考試試題：化學科#138024

114年 - 114 國立中興大學_公費生招生考試_學士後醫學系：化學#126482

113年 - 113 國立中興大學_公費生招生考試_學士後醫學系：化學科#119556

112年 - 112 國立中興大學_學士後醫學系招生考試試題_學士後醫學系甲、乙組：化學#113979

109年 - 109 高雄醫學大學_學士後醫學系招生考試：化學#87230

108年 - 108 高雄醫學大學_學生轉系考試試題：普通化學#86806

108年 - 108 學士後西醫：化學#77055

107年 - 高雄醫學大學 107 學年度學士後醫學系招生考試試題(共同科目)--化學#75186

106年 - 106 高雄醫學大學_學士後醫學系招生考試：化學#77049

99年 - 學士後西醫化學99化學#36021