(14分)美国化学家R.F.Heck因发现如下Heck反应而获得2010年诺贝尔

题型:填空题

问题:

(14分)美国化学家R.F.Heck因发现如下Heck反应而获得2010年诺贝尔化学奖。

(X为卤原子)

经由Heck反应合成M(一种防晒剂)的路线如下:

C为HOCH2CH2CH(CH3)2

 

回答下列问题:

(1)M可发生的反应类型是______________。

a.取代反应            b.酯化反应       c.缩聚反应             d.加成反应

(2)C与浓H2SO4共热生成F,F能使酸性KMnO4溶液褪色,F的结构简式是__________。D在一定条件下反应生成高分子化合物G,G的结构简式是__________。

(3)在A → B的反应中,检验A是否反应完全的试剂是_______________。

(4)E的一种同分异构体K符合下列条件:苯环上有两个取代基且苯环上只有两种不同化学环境的氢,与FeCl3溶液作用显紫色。K与过量NaOH溶液共热,发生反应的方程式为_________________________________________。

考点:有机物的推断
题型:填空题

阅读理解。

     There are four seasons in a year in China. Spring comes in February. May, June and July make the

summer season. August, September and October make the autumn season. November, December and

January make the winter season. In different seasons people wear different clothes and do different things.

For example the weather is hot, so people usually wear cool clothes and do things like swimming, boating

or surfing.

     Near the North Pole (北极) there are only two seasons. They are winter and summer. In winter,

nights are long. For more than two months you can't see the sun, even at noon. In summer the days are

long. For more than two months the sun never goes down and there is no night.

     The people living near the North Pole are called Inuit (因纽特人). In summer they live in tents and

catch deers (鹿) for food. In winter they live in small round snow houses. They can build a snow house

in two hours. They travel around by using dogs to carry their things. They make holes in the ice and

catch fish and seals (海豹). They eat much meat but not many vegetables.

1. The two seasons near the North Pole are _____. [ ]

A. spring and autumn

B. summer and winter

C. rainy season and dry season

D. spring and winter

2. You can't see the sun for _____ in North Pole in a year.[ ]

A. a season

B. a year

C. more than two months

D. half a year

3. Autumn in China _____.[ ]

A. is cold

B. lasts from August to October

C. hot

D. come after spring

4. Near the North Pole _____ in summer. [ ]

A. the days aren't long

B. the nights are long

C. there's no night for more than two months

D. 24-hour days last two months

5. The people in the North Pole eat much _____. [ ]

A. vegetables

B. meat

C. milk

D. bread

题型:填空题

任何控件都有的属性是( )。

A. BackColor

B. Caption

C. Name

D. BorderStyle

题型:填空题

下列哪项不是胃肠道手术麻醉应该注意的事项()

A.低蛋白血症

B.贫血

C.水电解质平衡紊乱

D.呕吐、误吸

E.家族史

题型:填空题

Unfortunately, the soldier died____ a wound in the chess.

A.from

B.out

C.off

D.down

题型:填空题

关于起落架收放位置锁的功用,描述正确的是().

A.将起落架收放收柄锁定在放下位置

B.将前起落架锁在中立位置

C.将起落架可靠固定于收上位或放下位

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