皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【简答题】
从樟科植物枝叶提取的精油中含有下列甲、乙、丙三种成分: (甲) 分子式 C 9 H 8 O 部分性质 能使Br 2 /CCl 4 褪色 (乙) 分子式 C 16 H 14 O 2 部分性质 能使Br 2 /CCl 4 褪色 能在稀硫酸中水解 (丙) (1)甲中所含官能团的名称为____、____。 (2)由甲转化为下列过程(已略去各步反应的无关产物,下同): 甲 Y 乙 其中反应Ⅰ的反应类型为____,反应Ⅰ的目的是____。 (3)已知: RCH CHR' RCHO+R'CHO;2HCHO HCOOH+CH 3 OH 由乙制丙的一种合成路线图如下(A~F均为有机物,图中M r 表示相对分子质量): ①下列物质不能与C反应的是____(选填序号)。 A.金属钠       B.HBr                        C.Na 2 CO 3 溶液             D.乙酸 ②写出由E生成F的反应方程式:____ 。 ③D有多种同分异构体,写出其中一种能同时满足下列条件的异构体结构____。 a.苯环上连接着三种不同官能团 b.能发生反应 c.能与Br 2 /CCl 4 发生加成反应 d.遇FeCl 3 溶液显示特征颜色 ④写出丙的结构:____。
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【简答题】T he popular notion that older people need less sleep than younger s is a myth, scientists said yesterday. W hile elderly people __1__ to sleep for fewer hours than they did when they were younge...
【单选题】室间隔缺损的患儿有时出现声音嘶哑,最常见的原因为
A.
左心室增大,压迫喉返神经
B.
肺动脉扩张,压迫喉返神经
C.
左、右心室增大,压迫喉返神经
D.
右心室增大,压迫喉返神经
E.
左心房增大,压迫喉返神经
【简答题】C Across Britain,burnt toast will be served to mothers in bed this morning as older sons and daughters rush to deliver their supermarket bunches of flowers.But,according to a new study,we should be pl...
【判断题】同一地质单元的渗透系数离散性不大
A.
正确
B.
错误
【简答题】Tom and Mike were good friends. 1 , sometimes they were not. But some of their classmates said they were like brothers. One day they went out for a walk together. 2 and they went into a restaurant to ...
【单选题】Many songs, poems, and book have been written on love's strong effect on people. The state of being in love has even been compared to being sick or (1) . A study by Professor Semir Zeki of University ...
A.
complete
B.
respond
C.
connections
D.
relationships
E.
Interestingly
F.
affect
G.
precise
H.
actual
【单选题】室间隔缺损的患儿有时出现声音嘶哑,最常见的原因为
A.
左心室增大,压迫喉返神经
B.
肺动脉扩张,压迫喉返神经
C.
右心室增大,压迫喉返神经
D.
左、右心室增大,压迫喉返神经
E.
左心房增大,压迫喉返神经
【简答题】T he popular notion that older people need less sleep than younger s is a myth, scientists said yesterday. W hile elderly people __1__ to sleep for fewer hours than they did when they were younge...
【简答题】2016卷A阅读理解 Once, when I was a ager, my father and I were standing in line to buy tickets for the circus. Finally, there was only one family between us and the ticket counter. This family made a bi...
【简答题】In 2002,President George W.Bush imposed tariffs on certain types of imported steel. He argued that foreign steel producers were dumping their steel on the U.S.market at low prices. The foreign steel p...
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题