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Do you know Sweden(瑞典)？It is in the n 小题1:    of Europe．It is the fourth largest c 小题2:    in Europe with an area of 450, 000 square kilometers and the number of people is about 8.5 million. Over one third(三分之一) of them live in the three largest cities, c 小题3:  Stockholm, Goteborg and Malmo. More than half of Sweden is covered with trees. It is one of the richest countries in the world. About 100 years ago Sweden became industrialized(工业化). Most f  小题4: gave up their farms and went into the cities. But now great c 小题5: have taken place. Sweden is the country where the famous Nobel Prize(诺贝尔)are awarded. Many people who have visited Stockholm, the c小题6:of Sweden, must have b  小题7:   to the places where Nobel Prizes are awarded. The first language of Sweden is Swedish. English is the first foreign language in schools. Many middle-school students can s  小题8: two to three languages. Most of the Swedish people，men and women, o小题9:   and young, can speak English. So there is no p  小题10:  to speak with them in English．

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，R为取代基)

经由Heck反应合成M(一种防晒剂)的路线如下：

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与浓硫酸共热生成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                              。