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110年 - 110 學士後醫學系招生考試:物理及化學#100231
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複選題
25. Which one of the following molecules has a dipole moment but without polarity? (AB) O
3
(AC) PH
3
(AD) NH
3
(AE) PCl
5
(BC) H
2
O
2
(BD)一律送分
答案：
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統計：
A(5), B(36), C(3), D(42), E(6) #2751640
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小杉很棒
2025/10/16
私人筆記#7497554
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110年 - 110 學士後醫學系招生考...
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21. What is the molecular shape of IF3 using the VSEPR theory? (A) Trigonal bipyramidal (B) See-saw (C) T-shaped (D) Linear (E) Square pyramidal
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22. What are the hybridization state and geometry of the nitrogen atom in the following chemical structure? (A) sp hybridized and linear geometry (B) sp2 hybridized and trigonal pyramidal (C) sp3 hybridized and trigonal pyramidal (D) sp3 hybridized and trigonal planar (E) sp3 hybridized and bent
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23. How many asymmetric carbons are presented in the compound below? (A) 2 (B) 3 (C) 4 (D) 5 (E) 6
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24. The chemical compound “ethylenediaminetetraacetic acid, EDTA” is a chelating agent to coordinate several metallic ions, such as ferric, cupper, and calcium ions. In the living organism, which amino acid is usually used as a chelating agent? (A) Cysteine (B) Glycine (C) Leucine (D) Tryptophan (E) Proline
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26. Consider the following processes:Calculate ΔH for: C → E + 3D (A) 0 kJ/mol (B) 10 kJ/mol (C) -10 kJ/mol (D) -20 kJ/mol (E) 20 kJ/mol
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27. CdS can be described as cubic closest packed anions with the cations in tetrahedral holes. What fraction of the tetrahedral holes is occupied by the cations? (A) 0.125 (B) 0.25 (C) 0.50 (D) 0.75 (E) 1.0
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28. For the reaction 3A(g) + 2B(g) → 2C(g) + 2D(g), the following data was collected at constant temperature. Determine the correct rate law for this reaction. (A) Rate = k[A][B] (B) Rate = k[A][B]2 (C) Rate = k[A]3 [B]2 (D)(E) Rate = k[A]2 [B]
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29. What is the number of the half-lives required for a radioactive element to decay to about 6% of its original activity? (please choose the nearest number) (A) 2 (B) 3 (C) 4 (D) 5 (E) 6
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30. Identify the element of Period 2 which has the following successive ionization energies, in kJ/mol. (A) Li (B) B (C) O (D) Ne (E) None of these
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31. Based on an order-of-magnitude estimate, what is the radius of the Earth in the unit of kilometer (km)? Hint: The meter was originally defined in 1793 as one ten-millionth of the distance from the equator to the North Pole along a great circle. (A) 2 (B) 4 (C) 6 (D) 8 (E) 10
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