110年 - 110 國立中山大學_碩士暨碩士專班招生考試_海資系碩士班選考:普通化學#104457

1.The gas-phase decomposition of N₂O is believed to occur in twosteps:
Step 1: N₂O → N₂+ O
Step 2: N₂O +0 N₂+O₂Experimentally the rate law is found to be rate =k[N₂O]. The rate-determining step is? (A)Step1 (B)Step2 (C) Step 1+Step2(D)2N₂O 2N₂+ O₂

2.Please determine which protons is most acidic.
(A)Ha (B)Hb (C) Hc (D)all the same

3.The electron configuration of a carbon atom with a negative charge is? (A)1s²s²p² (B)1s²2s²2p¹(C)1s²2s²2p³(D)1s²2s²2p⁴

複選題
4.The pressure of a sample of gas is measured at sea level is 254 mmHg. Thus, the pressure of the gas is? (A)35107 Pa (B) 1 atm (C) 0.352 bar(D)254 torr

5.The molecular structure of BF₃ is? (A) bent line (B)linear (C) trigonal planar(D)tetrahedral

6.Which of the following gases is expected to be most soluble in water? (A)CH₄ (B)CCl₄(C) CHCl₃(D)CH₃CH₃

7.In Lewis structure of Cl-F, the formal charges of Cl and F are? (A)-1,+1 (B)+1,-1(C)0, 0(D)0, -1

8. At the same temperature and pressure, the time required for a certain gas to diffuse is 4 times that of the same volume of hydrogen (H₂). Which of the following is the gas? (atomic mass: H = 1, N = 14, O = 16, S = 32) (A)O₂ (B) CO₂ (C) NH₃(D)SO₂

9. The Equilibrium constant is affected by the following factors. (A) catalyst (B) concentration of reactants (C) concentration of products(D)reaction temperature

10. Which of the following is the main force between molecules CH₄? (A) ion-dipole attraction (B) London-dispersion force (C) dipole-dipole attraction(D)ionic bonding

11. At room temperature, the [H'] of an alkaline solution = M. After diluting 100 ml of this solution to 1 liter with water, how much M is [H'] in the solution? (A)(B) (C) (D)

12. The copper oxide (CuO) and carbon powder are fully mixed and heated to produce red metal and gas. Which of the following statements is correct? (A) the gas is CO₂ (B) the red metal is copper carbide (C) this experiment shows that copper is more active than carbon (D)pour the gas into the water, it can be detected by the pH test strips to be alkaline.

13. Based on this phase diagram, which of the following statements is wrong?
(A) points C to E indicate gas and liquid equilibrium (B) from point A to F, sublimation occurs (C) the molecules are arranged closer at point F than at point A (D)the average kinetic energy of the molecule is smaller at point F than at point D.

14. The rate law of a reaction 2 A(g) + B(g) 2 C(g) is R= k(PA)².PB. If A and B are stored in a container with a molar ratio of 3:1, Now change the volume of the container so that the total pressure is 8 times the original partial pressure of gas B. What is the reaction rate ratio between this new condition and the original condition? (A) 4:1 (B) 8:1 (C) 1:1(D)16:1

15. In the coordination compound Cr(NH₃)₄C1₂, what is the oxidation number of the central atom Cr? (A)+1 (B)+2 (C)-3(D)+3

16. At a constant temperature, if the volume of the gas in a container decreases, (A) the pressure becomes smaller, the density becomes smaller (B) the pressure becomes smaller, the density becomes larger (C) the pressure increases, the density increases(D)the pressure increases, the density decreases.

17. In the reactionthe conjugate acid of NHg is? (A) (B) Cl^- (C) NH₂(D)HCI

18. How many chiral centers are there for the right compound?
(A)8 (B) 7 (C) 6(D)5

19. The radioactive nuclide of a certain element has undergone 87.5% decay during 360 years, which means that 12.5% of the original amount remains. How long is the half-life of this nuclide?
(A) 180 (B) 150 (C) 120(D)100

20. The energy diagram of reaction is: energy (A) a two-step exothermic (B) a two-step endothermic (C) a one-step exothermic(D)a one-step endothermic

110年 - 110 國立中山大學_碩士暨碩士專班招生考試_海資系碩士班選考:普通化學#104457

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