【简答题】(10分)化合物A、B和C的分子式均为C 7 H 8 O 2 。它们分别在催化剂作用和一定反应条件下加足量的氢,均生成化合物D(C 7 H 12 O 2 )。D在NaOH溶液中加热反应后在酸化生成E(C 6 H 10 O 2 )和F(CH 4 O)。 A能发生如下转化: 生成物N分子中只有3种不同化学环境的氢,它们的数目比为1∶1∶3。 9-1 画出化合物A、B、C、D、E、M和N的结构简式。 9...
【简答题】What is the hottest topic at your school? In Hangzhou Yongjin Middle School, it's money. The school ran an activity called' a living 'recently. About 800 Junior1 and Junior 2 students were divi...
【简答题】Dear Kitty, Thank you for your email. In your , you tell something about your school in America. And I a lot about you and your school. Now let you know something about me and my . I am a(an) boy. I w...