问题 推断题

化合物A(C8H8O3)为无色液体,难溶于水,有特殊香味,从A出发,可发生图示的一系列反应,图中的化合物A硝化时可生成两种一硝基取代物,化合物D能使FeCl3溶液显紫色,G能进行银镜反应。

试回答:

(1)写出A的结构简式:___________,(Ⅱ)的反应类型为___________。

(2)写出C→E的化学方程式:___________________; 写出D→H的化学方程式:_________________;写出E与银氨溶液反应的化学方程式________________。

(3)A有多种同分异构体,其中符合下列条件的同分异构体共有____种,写出其中一种的结构简式

_______________。

①遇FeCl3呈紫色 ②在稀的酸、碱溶液中均能反应且产物与A在相同条件下的水解产物组成均不同

(4)A的符合(3)中条件的某种同分异构体的水解产物I,以任意比与C混合,只要混合物总物质的量一定,完全燃烧时生成的水的量是一个常数,下列有关说法中正确的是____

a.完全燃烧时消耗氧气的数量是个定值

b.I是乙酸

c.等物质的量的C、I完全燃烧时耗氧量前者多

d.I是CH3CHO

答案

(1);酯化反应

(2) 2CH3OH+O22HCHO +2H2O;

HCHO+4Ag(NH3)OH(NH4)2CO3+4Ag↓+2NH3+2H2O

(3)6;(或等)

(4)b

写作题

第二节:读写任务(共1小题,满分25分)

阅读下面的短文,然后按照要求写一篇150词左右的英语短文。

On May 7, nineteen-year-old Hu Bin, after drinking, knocked a man to death when he was driving his sports car at an extremely fast pace between 84.1 k/h to 101.2 k/h. Hu was sentenced into prison for three years, according to the final judgment. Out of a hope for better traffic regulation and more drivers with loving hearts, Hangzhou City has since set up several special zebra crossings, which are wider, color-changed, and feature loving hearts wrapped up in the middle.

On August 4, a sixteen-year-old girl was crashed into by a black Porsche Cayenne and dead while crossing the street in Hangzhou City. The driver, 29-year-old Wei Zhigang, and his fiancé, who was also in the car when the accident took place, were both found drunk. According to witnesses, the Porsche Cayenne was speeding at more than 80 kilometers per hour at the time. The victim, Ma Fangfang, is a waitress in a restaurant in Hangzhou. She was walking on the zebra crossing when the Porsche Cayenne violently charged toward her and knocked her away. Wei Zhigang, the driver of the Porsche Cayenne, together with his fiancé, was detained and investigated by the Public Security Organ in Hanghzhou. Ironically, the zebra crossing where the accident took place is titled the “Zebra crossing of Living Hearts” in memory of the May 7 car accident in Hangzhou.

[写作内容]

1.    以约30个词概括短文的要点。

2.    以约120词对“酒后驾车”事件发表看法,并要包括下列要点:

(1)酒后驾车的危害;

(2)该不该严厉处罚醉酒驾车者,为什么?

[写作要求]

1.    作文中你可以使用自己的亲身经历或虚构的故事,也可以参照阅读材料的内容,但不能直接引用原文中的句子 ]

2.    作文中不能出现真实姓名和学校名称。

[评分标准]   概括准确,语言规范,内容合适,篇章连贯。

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