問題詳情
12.Which of the following compounds has a double bond that is conjugated with the p system of the benzenering?
(A)p-Benzyltoluene
(B)2-Phenyl-1-decene
(C)3-Phenylcyclohexene
(D)3-Phenyl-1,4-pentadiene
(E)None of these
(A)p-Benzyltoluene
(B)2-Phenyl-1-decene
(C)3-Phenylcyclohexene
(D)3-Phenyl-1,4-pentadiene
(E)None of these
參考答案
無參考答案
內容推薦
- 如圖(十三)，將長方形 ABCD 分割成1個灰色長方形與 148 個面積相等的小正方形。根據下圖，若灰色長方形之長與寬的比為 5 :3，則 =？ (A) 5:3(B) 7 :5(C) 23 :
- 某鞋店有甲、乙兩款鞋各 30 雙，甲鞋一雙 200 元，乙鞋一雙 50 元。該店促銷的方式：買一雙甲鞋，送一雙乙鞋；只買乙鞋沒有任何優惠。若打烊後得知，此兩款鞋共賣得 1800 元，還剩甲鞋
- ( )如（甲）圖，銳角三角形 ABC 中，直線 L 為 的中垂線，直線 M 為∠ABC 的角平分線，L 與 M 相交於 P 點。若∠A＝61°，∠ACP＝23°，則∠ABP 的為多少度?(A)
- 二、題組(每題2分)(20~24) When I woke up this morning, my dad was making breakfast. I asked if Icould help.
- My smartphone is pink, and so _________.(A) is her (B) is hers (C) are their (D) are you
- The country ________ the most coffee in the world is Brazil(巴西).(A) in which provide (B) who pro
- The song ______________ is my favorite BTS hit.(A) that you are listening (B) which you are list
- For those ________ stay in the office all day long, it is almost not possible to exercise forhal
- Mia’s brother has never been to the USA, and ________ her cousins.(A) so has (B) so have (C) neit
- A: Do you know someone _________ a collection of your ugly photos?B: What if he uploads and post
內容推薦
- Consider the following statements concerning the effect of a trifluromethyl group-CF3, on an elec
- All the following groups are activating ortho, para directors when attached to a benzene ring EXC
- Let f (x) = xsin x , then = ?(A) 1 (B) (C) (D) 2 (E)
- 一袋子中有4個圓球，球上分別標記號碼4。已知每一個球被取到的機會相等，若自袋中任取兩次球(一次一球，取後放回)，則取出的兩球號碼是4或3的機率為何？(A)1/2(B)1/4
- 【題組】Butter can be a solid or a liquid depending on how hot or cold it gets. What evidence in the
- ( )如（乙）圖，正五邊形 ABCDE 及正六邊形 BFGHIJ邊長皆為 2，且點 A、B、F 在同一條直線上，則∠BJC為多少度?(A) 66 ° (B)68° (C) 62° (D) 60°
- If f :(a,b)→ R has a relative extremum at c∈(a,b) , then either f′(c) 0 = or f′(c) does not exis
- 圖(十一)為扇形DOF與直角△ABC的重疊情形，其中O、D、F分別在 上，且 與 相切於E點。若 =3，∠DOF=∠ACB=90°，且 = 2 : 1，則AB的長度為何？(A)6(B)3√3
- The 1H nmr spectrum of acetone consists of a singlet with a chemical shift of 07 ppm. What was
- If f is continuously differentiable and z = f(x−y ) , then zx+zy =0 . (A)O(B)X
- The number of possible dichloronitrobenzene isomers is(A)3 (B)4 (C)6 (D)8 (E)9
- The relationship between magnetic field strength and the energy difference between nuclear spin s
- 【題組】What caused the liquid eggs to turn into solid scrambled eggs?(A) The heat from the cooking
- The following problem refers to the 1H nmr spectrum of CH3CH2OCH2OCH2CH(A)12 (B)5 (C)4 (D)3 (E)
- An infrared spectrum exhibits a broad band in the 3000 to 3500cm-1region and a strong peak at 171
- 【題組】What is the main idea of this story? character 角色(A) The main character and Dad made eggs a
- Give the reagent(s) that would best accomplish the following transformation. (A) CH3COOH (B) MnO
- 如圖(十四)，將二次函數 y=31x2-999x+892的圖形畫在座標平面上，判斷方程式31x2-999x+892 =0的兩根，下列敘述何者正確？ (A)兩根相異，且均為正根(B)兩根相異，且
- 座標平面上，有一線型函數圖形過 (-3, 4) 和 (-7, 4 ) 兩點，判斷此函數圖形會過哪兩象限？(A) 第一象限和第二象限(B) 第一象限和第四象限(C) 第二象限和第三象限(D) 第
- 已知甲袋有 5 張分別標示 1 ~ 5 的號碼牌，乙袋有 6 張分別標示 6 ~ 11 的號碼牌，慧婷分別從甲、乙兩袋中各抽出一張號碼牌。若同一袋中每張號碼牌被抽出的機會相等，則她抽出兩張號碼
- The acid present in vinegar is .(A) Ethanol (B) Ethanoic acid (C) Formic acid(D) B
- The compound, 2-methy1-2-propanol, is an isomer of .(A) butane (B) propane (C) b
- What is the name of the following amine? (A) Pyridine (B) Pyrrole (C) Piperidine(D) Pyrimidine (
- 【題組】What does the word “observed” mean in the article?(A) ate(B) watched(C) caused(D) cooked
- 圖 ( 十二 ) 為正三角形 ABC 與正方形 DEFG 的重疊情形，其中 D、E 兩點分別在 上，且 。若 ，則 F 點到 的距離為何？ (A) 2(B) 3(C) 12-4√3(D) 6√