相对分子质量为174的有机物M中只含有C、H、O三种元素,其分子结构如图所示。

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问题:

相对分子质量为174的有机物M中只含有C、H、O三种元素,其分子结构如图所示。

请回答下列问题:

(1)M的结构简式是________________________。

(2)下列关于M的说法,正确的是________。

A.遇FeCl3溶液呈紫色

B.遇紫色石蕊溶液变红色

C.遇溴水发生取代反应

D.能缩聚为高分子化合物

(3)M在一定条件下发生消去反应,生成,该反应的化学方程式是_________。

(4)M与有机物A在一定条件下可生成一种相对分子质量为202的酯类物质。A可能的结构简式是______________________。

(5)研究发现,有一种物质B的分子组成和M完全一样,但分子中无环状结构;B在一定条件下水解能够产生甲醇;B的核磁共振氢谱如图(两个峰面积比为2∶3)。

物质B的结构简式是____________。

考点:结构简式结构式
题型:填空题

Billiards(台球) is my favorite ball sport. The English player Ronnie O’Sullivan and Chinese player Ding Junhui are   46  my favorite players. They play it very well. I hope I’ll be   47  to play it well, too. Of course, it is only a dream. Of the two players, I  48  O’Sullivan, because he played it so quickly in the races.

When I was nine, I   49_  this ball sport for the first time. My PE teacher, Mr. Xu, and I became good   50  because of billiards. I still remember that one day Mr. Xu and I played billiards   51  class. We were so excited that we both  52  the lunchtime. Suddenly, my father showed up, he was very angry with me.

Well, it is   53 to know the rules, but it is not easy to get a good  54  in the game. Now billiards is becoming more and more  55  in China, and more and more Chinese are enjoying it.

小题1:A.two            B.both             C.all

小题2:A.able           B.free             C.glad

小题3:A.love           B.like             C.prefer

小题4:A.hit            B.joined           C.played

小题5:A.athletes       B.friends          C.teachers

小题6:A.after          B.before           C.in

小题7:A.knew           B.forgot           C.remembered

小题8:A.easy           B.hard             C.difficult

小题9:.A.rule          B.score            C.player

小题10:A.boring        B.famous           C.popular

题型:填空题

有着“泥土诗人”之称的作者是()

A.田间

B.贺敬之

C.艾青

D.臧克家

题型:填空题

下列实验现象的描述正确的是

A.氢气在氯气中燃烧,发出苍白色火焰,瓶口上方有白色烟雾

B.铁丝在氯气中燃烧,产生棕褐色的浓烟,产物溶于水,溶液呈浅绿色

C.铜在氯气中燃烧,产生棕黄色烟,产物溶于水,溶液呈蓝绿色

D.钠在空气中燃烧,发出黄色的火焰,生成白色固体

题型:填空题

消法

题型:填空题

叶绿素与()以复合体的形式存在。

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