46. 玻璃為矽酸鈉(Na2SiO3)與矽酸鈣(CaSiO3)的混合物，其不合適裝下列何種藥品？ (A) 濃硫酸(H2SO4) (B) 氫氟酸(HF) (C) 濃硝酸(HNO3) (D) 濃鹽酸(HCl)

46. 玻璃為矽酸鈉(Na₂SiO₃)與矽酸鈣(CaSiO₃)的混合物，其不合適裝下列何種藥品？
(A) 濃硫酸(H₂SO₄)
(B) 氫氟酸(HF)
(C) 濃硝酸(HNO₃)
(D) 濃鹽酸(HCl)

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統計： A(25), B(438), C(16), D(11), E(0) #2751751

詳解 (共 1 筆)

wynette

B2 · 2021/08/16

#5010774

氫氟酸常見的考題有可以溶解玻璃之外, 還...

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王佳萱(已考上：）謝謝阿模前輩們的精華！

2021/12/18

私人筆記#3782776

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87. Sulfur tetrafluoride adopts a see-saw geometry with two axial F atoms with a F–S–F angle of about 180º and two equatorial F atoms at about 90º from the axial fluorines. Which statement most accurately describes the axial and equatorial S–F bonds? (A) The axial S–F bonds are longer because the two fluorine atoms must share bonding to the same orbital on sulfur. (B) The axial S–F bonds are longer because they experience greater repulsion from the other fluorine atoms in the molecule. (C) The equatorial S–F bonds are longer because the equatorial F–S–F bond angle is the smallest in the molecule. (D) The equatorial S–F bonds are longer because they experience greater repulsion from the lone pair on sulfur. (E) The equatorial S–F bonds are longer because they experience greater repulsion from two axial fluorine atoms.

46. 玻璃為矽酸鈉(Na₂SiO₃)與矽酸鈣(CaSiO₃)的混合物，其不合適裝下列何種藥品？
(A) 濃硫酸(H₂SO₄)
(B) 氫氟酸(HF)
(C) 濃硝酸(HNO₃)
(D) 濃鹽酸(HCl)

詳解 (共 1 筆)

私人筆記 (共 1 筆)

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