饱和一元醇A是一种常见的有机溶剂,7.4gA与足量金属Na反应放出1.12LH2 (标淮状况下),且A可以发生以下

2025-03-17 02:32:59
推荐回答(1个)
回答1:

(1)饱和一元醇A是一种常见的有机溶剂,7.4gA与足量金属Na反应放出1.12LH2 (标淮状况下),n(H2)=
1.12L
22.4L/mol
=0.05mol,根据羟基和氢气之间的关系式知,A的物质的量是氢气的2倍,所以A的物质的量为0.1mol,A的摩尔质量=
7.4g
0.1mol
=74g/mol,设该一元醇的化学式为CnH2n+1OH,n=
74?18
14
=4,则A的分子式为C4H10O,A在光照条件下只有一种一氯取代物B,则A的结构简式为(CH33COH,B的结构简式为(CH32C(OH)CH2Cl,A和Na发生反应生成C,则C的结构简式为(CH32C(ONa)CH2Cl,A发生消去反应生成D,则D的结构简式为CH2=C(CH32,D和溴发生加成反应生成E,则E的结构简式为CH2BrC(CH32Br;
(1)①通过以上分析知,A的分子式为C4H10O,故答案为:C4H10O;
②A在光照条件下只有一种一氯取代物B,则A的结构简式为(CH33COH,B的结构简式为(CH32C(OH)CH2Cl,则由A转化为B的化学方程式为
故答案为:
③A的同分异构体F也可以有框图内A的各种变化,且F分子中除官能团之外还有3种不同化学环境的氢原子,则F分子中含有两个甲基且主链上有3个C原子,且醇羟基位于边上,所以F的结构简式为,故答案为:

(2)有机物G(C7H8O)可用作显影剂,遇含有Fe3+的溶液显紫色,则G中含有酚羟基,且苯环上含有一个甲基,则G具有酚和甲苯的性质,所以G还能发生加成反应、氧化反应、取代反应,故选①③⑤;
G的苯环上的一溴取代物只有两种,说明酚羟基和甲基处于对位,则G的结构简式为,故答案为:①③⑤;
(3)G的另一种同分异构体H苯环上只有一个支链,H能连续被氧化,说明H中含有醇羟基,则H为苯甲醇,J是苯甲醛、K是苯甲酸,苯甲酸和醇发生酯化反应生成酯,该反应为
故答案为:

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