資訊推薦

• 9.於相同電壓下，R1及 R2兩電阻，接成串聯及接成並聯時之消耗電功率比為(A)(R1R2)/(R1+R2)，(B)(R1+R2)/(R1R2)，(C) (R1+R2)2/(R1R2)，(D) (R1
• 10.如圖 S 開關關上，則 (A)R3無電流，(B)R1之電流不變，(C)R2之電流增加，(D)總電流減少。
• 72. Which one of the following tetrahedral MXF- complexes has the strongest crystal field stabilizat
• 73. Although the peroxide ion, O22-, and the acetylide ion. C22-, have long been known. the diazenid
• 74. Calculate the reduced mass of HF molecule given that the mass of H atom is 1 amu and the mass of
• 75. What factors affect the ionization energy of an atom?(A) Electron shielding(B) Electron configur
• 76. How can we explain the fact that CCl4 is a liquid and CL. is a solid at 25℃? Which of the follow
• 77. How many microstates does a s1d1 electron configuration have?(A)5(B)10 (C)15 (D) 20 (E) 25
• 78. The most probable distribution function for a system of molecules is given by(A) Maxwell-Boltzma
• 79. What is the oxidation state of the terminal nitrogen atom in azide ions?(A)-3 (B)-1 (C)+1 (D) +4
• 80. What is the highest occupied molecular orbital of a C24- ion?(A)σ2s* (B) π2p (C) σ2p(D)π2p*(E) σ
• 81. On the basis of VSEPR, what is the predicted point group for XeO2F2?(A)Ci (B) Cs (C)C2v (D) C4v
• 82. Sort the ions in the order from the largest radius to the smallest radius:(1) Se2- (2) Br- (3) R
• 83. What is the highest molecular orbital degeneracy of cyclic H3+?(A)0(B)1 (C)2 (D)3 (E)4
• 84. Which of the following [M(H2O)o"* complexes reacts the slowest in a water exchange reaction
• 85. How many carbonyI stretching bands could be observed in the IR spectrum of the [Co(CO)3(PPh3)2]+
• 86. The infrared spectrum of synthesized [Co(CO)2(CN)2Br2]- exhibits two bands attributable to C-Ost
• 87. In Valence Bond theory, bonds between atoms are formed by________.(A) overlap of proton wave fun
• 88. What is the formal charge of the oxygen atom in a molecule of CO2?(A)0(B)+1 (C)-1 (D)+2 (E)-2
• 89. What does a low relative standard deviation indicate?(A) High accuracy (B) High precision (C) Lo
• 90. What is the number of σ-bonds in ethylene (C2H4)?(A)1 (B)2 (C)3 (D)4 (E) 5
• 1.有關砂輪構造的敘述，下列何者正確？ (A)砂輪磨料硬度高稱為「硬砂輪」 (B)結合度弱之砂輪適用於硬質材料之磨削 (C)疏(鬆)組織砂輪適用於精磨作業 (D)砂輪磨粒號數愈小，其粒度愈細
• 18. 如圖【1】所示電路，R＝6kΩ，C＝1μF，則時間常數為多少？ (A) 1m sec(B) 4m sec(C) 9m sec(D) 36m sec
• 39.兩電燈泡 B1 與 B2 之規格如圖所示，若該二燈泡之材質相同，則串聯時，下列敘述何者正確？ (A) B1較亮，流經 B1的電流為 2.4A (B) B2較亮，流經B2的電流為 0.2A (C
• 2. 下列流程圖所對應的 C/C++指令為何？ (A)do...while(B)while(C)switch...case(D)if...then...else。