(15分)有机物A为芳香烃,质谱分析表明其相对分子质量为92,某课题小组以A为起

题型:填空题

问题:

(15分)有机物A为芳香烃,质谱分析表明其相对分子质量为92,某课题小组以A为起始原料可以合成酯类香料H和高分子化合物I,其相关反应如下图所示:                                                       

已知以下信息:

①碳烯(:CH2)又称卡宾,它十分活跃,很容易用它的两个未成对电子插在烷烃分子的C-H键之间使碳链增长。

②通常在同一个碳原子连有两个羟基不稳定,易脱水形成羰基。

回答下列问题:

(1)A的化学名称为         

(2)由B生成C的化学方程式为                ,该反应类型为          。                                                              (3)G的结构简式为           

(4)请写出由F生成I的化学方程式                                             

(5)写出G到H的反应方程式                                       。                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 

(6)H的所有同分异构体中,满足下列条件的共有        种;

①含有苯环        ②苯环上只有一个取代基          ③属于酯类

其中核磁共振氢谱有五种不同化学环境的氢,且峰面积比为1:1:2:2:6的是           (写结构简式)。

考点:结构简式结构式
题型:填空题

关于对社会主义法治理念的理解,下列选项中不正确的是哪一项?()

A.社会主义法治理念是中国特色社会主义的系统化的法治意识形态

B.社会主义法治理念反映和指引着社会主义法治的性质、功能、目标方向、价值取向和实现途径

C.社会主义法治理念仅是我国当前社会主义法治事业需要遵循的指导思想

D.社会主义法治理念是马克思主义法律思想中国化的最新成果

题型:填空题

使用镜面露点仪测量SF6气体湿度的影响因素有干扰物质和()。

A.冷壁效应

B.样气流速

C.吸附影响

D.测量室内压力

E.镜面污染

F.环境温度

题型:填空题

建筑物雨篷结构的外边线至外墙结构外边线的宽度超过2.1m者( )。

A.雨篷层高小于1.2米的部分不计面积

B.按雨篷层高大于2.2m的计全面积

C.按雨篷结构板水平投影面积的一半计算

D.雨篷层高在1.2~2.2m间的按1/2面积计算

题型:填空题

井下运行中的橡套电缆,其它部位绝缘性能合格可对其损坏部位进行冷补。()

题型:填空题

试述聚乙烯的优点?

更多题库