111年 - 111 臺灣綜合大學系統_學士班轉學生聯合招生試題：普通化學B#116071

選擇題 (20)

1. The reaction has the rate law of rate = k[A][B]². Which one of the following will cause the rate to increase the most? (A) doubling [A] (B) lowering temperature (C) tripling [B](D) quadrupling [A] (E) doubling [B]

2. Choose the INCORRECT statement. (A) When a half reaction is reversed, the sign of the potential is changed. (B) Reversing a half reaction makes it a reduction potential. (C) Each electrochemical cell consists of a reduction half-cell and an oxidation half-cell. (D) A voltaic cell is also called a battery. (E) The potential difference of a cell is the voltage of the cell.

3. Finish the following reaction: (A) (B) (C)(D)

4. Which element has the largest number of unpaired electrons? (A) (B) (C)(D) (E)

5. Choose the correct shape, weak/strong field, and number of unpaired electrons for . (A) square planar, strong, 6(B) square planar, weak, O (C) tetrahedral, strong, O (D) octahedral, strong, O (E) octahedral, weak, 6

6. Choose the correct statement for half-life:
(I) the time for a sample to decay completely.
(II) constant for a given radioisotope.
(III) the time required for half of a sample to decay.
(IV) inversely proportional to the decay constant.(A) I and II (B) I, II, and III(C) I and III (D) I, III, and IV(E) II, II, and IV

7. The IUPAC name of the tert-butyl group is: (A) 1,1-dimethylethyl(B) 1,1-dimethylethane (C) 1,2-dimethylethyl (D) 1-methylpropyl(E) 2-methylpropyl

8. If, at a given temperature, the equilibrium constant for the reaction is 5.0, then the equilibrium constant for the reaction can be represented as (A)0.040(B)25 (C) 0.45 (D)0.20 (E) 5.0

9. A mixture of H₂SO₄ and NaOH has a pH of 1.9. Which one below is true about the mixture at equilibrium? (A)(B)(C) (D) (E)

10. You are given a solution of the weak base Novocain, Nvc. Its pH is 11.00. You add to the solution a small amount of a salt containing the conjugate acid of Novocain, NvcH+. Which statement is true? (A) The pH and the pOH remain unchanged.(B) The pH and the pOH both decrease. (C) The pH and the pOH both increase. (D) The pH increases and pOH decreases. (E) The pH decreases and the pOH increases.

11. What is the best way to make a buffer? (A) Dilute sea water (B) Combine a strong acid and a strong base (C) Combine a strong acid and a weak base (D) Combine a strong base and a weak acid (E) Combine a weak acid and a salt containing its conjugate base

12. What sign of △G° will lead to equilibrium constant that is greater than 1? (A)△G°=0(B) Not enough information is given (C)△G°＞0 (D)△G°＜O

13. You are trying to dissolve the most amount of Ag₂S possible. Beaker A is filled with 100 mL of pure water and beaker B filled with 100 mL of a 0.10 M Ag₂SO₄ solution. Which beaker will dissolve the most Ag₂S and why? (A) Beaker B, because sulfate helps dissolve salts (B) Beaker A, because there isn't a common ion already present (C) Beaker A, because pure water increases the of Ag₂S (D) Beaker B, because the silver ions in the solution will increase the solubility (E) Beaker B, because "like dissolves like"

14. Which acid generates the strongest conjugate base? (A) Formic acid (B) Hydrochloric acid (C) Sulfuric acid (D) Nitric acid (E) Perchloric acid

15. Which is the strongest base? (A) 1 M hydroxylamine； = 8.0 (B) 1 M aniline； = 9.4 (C) 1 M ethylamine； = 3.4 (D) 1 M ammonia； = 4.7 (E) 1 M hydrazine；= 6.0