102年 - [無官方正解]102 國立嘉義大學_轉學生招生考試試題：普通化學#146608

1. Which of the following description is true for(A) 12 protons, 12 neutrons, and 12 electrons(B) 12 protons, 12 neutrons, and 10 electrons(C) 10 protons, 12 neutrons, and 12 electrons(D) 12 protons, 10 neutrons, and 12 electrons

2. Which of the following number has the least number of significant figures ?(A) 11111 (B) 0.20001(C) 0.00167(D) 0.90000

3. Consider the numbers 13.38 and 4.12. The sum of these numbers has _____significant figures, and the product of these numbers has _____ significantfigures. (A) 3, 3 (B) 4, 4 (C) 3,4 (D) 4, 3

4. Which of the following is not state function?(A) Work, w (B) enthalpy, H (C) temperature, T (D) entropy, S

5. Which of the following contain most number of hydrogen atoms ?(A) 2.0 x 10² mg H₂O (B) 10 ppm H₂ in 10kg dry ice(C) 1.0 x 10⁵ ng H₂ (D) 10^-4 mole CH₄

6. Which of the following nomenclature is correct for CuCl ?(A) cupric chloride (B) cupric chlorine(C) copper (I) chloride (D) copper chloride

7. What is the coefficient for water when the following equation is balanced ?
Fe₂O₃ + HNO₃ → Fe(NO₃)₃ + H₂O(A) 1 (B) 2 (C) 3 (D) 4

8. Which of the following atoms has the highest first ionization energy?(A) O (B) C (C) Na (D) Mg

9. Consider the following reaction: 2A + 3B → 2C + D3.0 mol A and 2.0 mol B react to form 1.0 mol C. What is the percent yield ofthis reaction? (A) 33% (B) 67% (C)75% (D) 100%

10. Which of the following salts is expected to be soluble in water?(A) Sodium sulfide (B) lead (II) chloride (C) calcium sulfate (D) silverchloride

11. Which of the following statement is correct when 0.1 M of AgNO3(aq) and 0.1Mof KI(aq) are mixed?(A) KNO3 will precipitate; Ag+ and I- will be spectator ions.(B) No precipitate will form(C) AgI will precipitate; K+ and I- will be spectator ions.(D) AgI will precipitate; K+ and NO3- will be spectator ions.

12. If the C=C axis of CH2=CH2 is twisted for 45o, how many bond(s) will bebroken?(A) 0 (B) 1 (C) 2 (D) 3

13. Diamond has unusual hardness and melting point. What type of solid is it?(A) ionic crystal (B) molecular crystal (C) metal crystal (D) covalentcrystal

14. Which of the following sets of quantum numbers are not allowed?(A) n=3, l=2, ml=0 (B) n=4, l=2, ml=1 (C) n=1, l=1, ml=1 (D) n=2, l=1, ml=0

15. What is the geometry structure of SO2?(A) linear (B) bent (C) T-shape (D) tetrahedron

16. The change of internal energy (E) can be express by:(A) w + q (B) w + H (C) H + PV (D) w + PV

17. As the volume of a gas increases, the pressure decreases due to(A) a decrease in temperature of the gas molecules.(B) an increase in the density of the gas system.(C) a decrease in the number of collisions occurring per unit time.(D) an increase in the kinetic energy of the gas molecules.

18. How many of following species’ bond order are 0? Be2 , B2 , H22- , N22- , He22+(A) 1 (B) 2 (C) 3 (D) 4

19. When an hydrogen electron makes transition from n = 2 to n = 1, which of thefollowing statements is (are) true?I. Energy is emitted.II. Energy is absorbed.III. The electron loses energy.IV. The electron gains energy.V. The electron cannot make this transition.(A) II, III (B) V (C) I, III (D) II, III

20. Which of the following subshell orbital have the quantum numbers n = 3, l = 2?(A) 2p (B) 3p (C) 3d (D) 4d

21. Which of the following statements about quantum theory is incorrect?(A) The energy and position of an electron cannot be determinedsimultaneously.(B) Lower energy orbitals are filled with electrons before higher energyorbitals.(C) When filling orbitals of equal energy, two electrons will occupy the sameorbital before filling a new orbital.(D) No two electrons can have the same four quantum numbers.

22. The small, but important, energy differences between 3s, 3p, and 3d orbitalsare due mainly to (A) the penetration effect(B) their principal quantum number (C) the Heisenberguncertainty principle (D) the number of electrons they can hold

23. In the gaseous phase, which of the following diatomic molecules would be themost polar? (A) LiF (B) CsF (C) NaCl(D) CsCl

24. Which of the following has the smallest radius?(A) F- (B) Ne (C) O2- (D) Mg2+

25. How many species could have  bond(s) in the following? NO2- , NF3 , CO32- ,SO2 , CO2(A) 1 (B) 2 (C) 3 (D) 4Draw the Lewis structures of the molecules below and use them toanswer the questions from 26 to 28.I. BH3 II. SO2 III. NO2 IV. N2O

26. Which of the molecules does not obey the octet rule?(A) IV (B) III (C) II (D) I

27. How many of the molecules have dipole moment?(A) 1 (B) 2 (C) 3 (D) 4

28. How many of the molecule(s) have London dispersion force?(A) 1 (B) 2 (C) 3 (D) 4

29. The bond angles about the carbon atom in carbon dioxide are about:(A) 120° (B) 180° (C) 109° (D) 90°

30. The atomic number of Bi is 83. What orbital is the highest energy level withelectron(s)?(A) 6s (B) 6p (C) 6d (D) 5d

31. The C-C  bond of H2C=CH2 is formed by two orbitals. What are these orbitals?(A) s and s (B) s and sp2 (C) s and sp3 (D) sp2 and sp2

32. As the bond order of a bond increases, the bond energy _____ and the bondlength _____. (A) increase, increase (B)decrease, decrease(C) increase, decrease (D) decrease, increase

33. For O2, N2 , B2, and F2, how many molecules is (are) paramagnetic?(A) 1 (B) 2 (C) 3 (D) 4

34. Calculate the work associated with the expansion of a gas from 40 L to 60 L ata constant external pressure of 15 atm?(A) 300 atm．L (B) -300 atm．L (C) 1500 atm．L (D) -1500 atm．L

35. A solution of hydrogen peroxide is 23.3% H2O2 by mass and has a density of1.11 g/cm3. The molarity of the solution is:(A) 7.14 M (B) 0.259 M (C) 7.60 M (D) 7.93 M

36. Given the following acids and Ka values:HClO4 HOAc HCN HF1 × 107 1.76 × 10-5 4.93 × 10-10 3.53 × 10-4Which is correct in term of base strength?(A) CN- ＜ F- ＜ OAc- ＜ ClO4- (B) CN- ＜ OAc- ＜ F- ＜ ClO4-(C) ClO4- ＜ OAc-＜ CN- ＜ F (D) ClO4-＜ F-＜ OAc- ＜ CN-

37. How much heat is required to raise the temperature of a 4.48-g sample of iron(specific heat = 0.450 J/g°C) from 25.0°C to 79.8°C?(A) 1.98 J (B) 246 J (C) 110 J (D) 546 J

38. In the reaction P4(s) + 10Cl2(g) → 4PCl5(s), the reducing agent is(A) Chlorine (B) PCl5 (C) phosphorus (D) Cl-

39. Four identical 1.0-L flasks contain the gases He, Cl2, CH4, and NH3, each at 0°Cand 1 atm pressure. For which gas do the molecules have the highest averagevelocity? (A) H2 (B) O2 (C)CO2(D) NH3

40. In which case must a reaction be spontaneous at all temperatures?(A) ΔH is positive, ΔS is positive. (B) ΔH = 0, ΔS is negative.(C) ΔS = 0, ΔH is positive (D) ΔH is negative, ΔS is positive.