正在加载图片...
4.Which of the follwing ould youexpet toreact fastest with the nueleophileI (odide H.CH.CH.E CH.CH.CH.CI Ans:A 5.Complete the following reaction: CH3 CH2B H3C-p CH3 CH3 CH2CH3 HgC-P-Br + CH3 Br CH2 HgC-PLH + CH3 9 CH3 Br CH3 CH3 CH3 HC-PSCH2 +HB A)CH-CI D)CHCH2I E) (CH:)2CHBr Ans:D Page2 Page 2 4. Which of the following would you expect to react fastest with the nucleophile I− (iodide)? A) CH3CH2CH2Br D) (CH3)2CHCH2Cl B) CH3CH2CH2Cl E) (CH3)3CCH2Br C) (CH3)2CHCH2Br Ans: A 5. Complete the following reaction: CH3 P CH3 H3C CH2Br : + ? A) CH3 H3C P Br CH2CH3 + B) CH3 P CH3 H3C CH2 H Br- + + C) CH3 P CH3 H3C CH2 Br- + D) CH3 P CH2 H3C CH3 + + HBr E) no reaction will occur Ans: C 6. Which of the following would you expect to have the weakest C-X bond? A) CH3Cl B) CH3CH2Br C) CH3F D) CH3CH2I E) (CH3)2CHBr Ans: D
<<向上翻页向下翻页>>
©2008-现在 cucdc.com 高等教育资讯网 版权所有