問題詳情

30. Five different types of chemical bonds in the molecularstructure of ethanol are shown in Fig. 3. Which of thefollowing statements about reactions in which ethanolbreaks bonds is incorrect?
  


(A) Bond ① breaks upon reaction with sodium metal.
(B) Bond ② and bond ⑤ break, when heating with concentrated sulfuric acid to170℃.
(C) Only bond ② breaks, when heating with concentrated sulfuric acid to140℃
(D) Bond① and bond ③ break upon reaction with O2 catalyzed by copper.
(E) Only bond ① breaks, when reacting with carboxylic acids in the presence ofconcentrated sulfuric acid. 

參考答案

答案:C
難度:計算中-1
書單:沒有書單,新增