有机物DBP常用作纤维素树脂和聚氯乙烯的增塑剂,特别适用于硝酸纤维素涂料。具有优良的溶解性、分散性和粘着性。由有机物A和邻二甲苯为原料可以合成DBP。
已知:①RCH=CH2+CO+H2
②烃A是有机合成的重要原料。A的质谱图表明其相对分子质量为42,红外光谱表明分子中含有碳碳双键;B能发生银镜反应;有机物c的核磁共振氢谱显示其分子中含有5种氢原子,且其峰面积之比为3:2:2:2:1;DBP分子中苯环上的一溴取代物只有两种。
(1)A的结构简式
是 。
(2)B含有的官能团名称是 。
(3)有机物C和D反应生成DBP的化学方程式是 。
(4)下列说法正确的是(选填序号字母) 。
a.A能发生聚合反应、加成反应和氧化反应
b.和C互为同分异构体,且含有相同官能团的有机物有2种
c.邻二甲苯能氧化生成D说明有机物分子中基团之间存在相互影响
d.1 mol DBP可与含2 mol NaOH的溶液完全反应
(5)工业上常用有机物E(C8H4O3)代替D生产DBP。反应分为两步进行:
①
②中间产物+C→DBP
工业生产中在第②步中使用油水分离器将反应过程中生成的水不断从反应体系中
分离除去,其目的是 。
(6)工业上生产有机物E的反应如下:
芳香烃X的一溴取代物只有两种,X的的结构简式是 。
用适当的介词填空。(2(7)分)
(1)I wasn't ________ school last week.
(2)Tom was born ________ May 1st,1998.
(3)They were born ________ the same day ____ Alice!
(4)I was born ________ Shanghai.
(5)They will go swimming ________ summer.
(6)Do you want ________ go there?
(7)The policemen come back ________ the station.
(8)Were you ________ home yesterday?
(9)I saw a lot________ new books.
根据答句写问句。(24分)
(1)— ________ ________ ________ last year?
—I was in Beijing last year.
(2)—________ ________ ________ holiday?
—My holiday was interesting.
(3)—________ ________go to Sanya?
—Yes,she did.
用所给单词的适当形式填空。(20分)
(1)I ________ (watch)TV with my sister last night.
(2)We ________ (eat)some good food yesterday.
(3)This is ________ (Mary)English book.
(4)They went to ________ (visit)Shanghai.
(5)I will ________ (go)to Shanghai in summer.
按要求改写句子。(18分)
(1)My brother is making__a__sandcastle.(就画线部分提问)
________ ________ ________brother ________?
(2)It is warm in summer.(就画线部分提问)
________ the ________ ________ in summer?
(3)It is spring in China.(就画线部分提问)
________ ________is it in China?
按要求改写句子。(24分)
(1)It's cold in winter. (就画线部分提问)
________the weather________in winter?
(2)There are four seasons in a year.(就画线部分提问)
________ ________seasons are there in a year?
(3)Give him a knife! (改为否定句)
________ ________him a knife!
(4)He goes to school by bus. (改为否定句)
He________ ________to school by bus.