问题 推断题

PAR是分子主链上带有苯环和酯基的特种工程塑料,在航空航天等领域具有广泛应用。下图是合成PAR(G)的路线:

已知:①RCOOH+SOCl2→RCOCl+SO2­+HCl

③A是芳香烃,1H核磁共振谱显示其分子有4种不同化学环境的氢原子;

④F能使氯化铁溶液显色,其分子苯环上一硝基取代物有两种,分子中含有甲基、5个碳原子形成的直链

回答下列问题:

(1)写出A的结构简式         

(2)A~G中含羟基的有机物有      (用字母回答);

(3)与D互为同分异构体,且能够发生银镜反应,又能跟小苏打溶液生成二氧化碳气体的有机物共有

               种。

(4)选出符合(3)中条件的D的无支链的同分异构体,写出其跟过量碱性新制氢氧化铜共热时反应的离子方程式         

(5)下列关于有机物E的说法正确的是      。(填字母序号)

A.能发生加聚反应

B.能与浓溴水反应

C.能发生消去反应

D.能与H2­发生加成反应(6)写出反应④的化学方程式       

答案

(14分)

(1)(2分) (2)B、D、E、F(2分)    (3)5(2分)

(4)HOOCCH2CH2CH2CHO+2Cu(OH)2+2OH--OOCCH2CH2CH2COO-+Cu2O↓+4H2O (3分)

(5)BD(2分)   

(6)

(3分)

题目分析:分子式为C8H10的芳香烃结构简式可能是,核磁共振谱有4种不同化学环境的氢原子的是。A生成B为氧化反应,B为;由信息①可知C为;对照D、苯酚和E的分子式可知反应③是两分子苯酚和一分子D脱去一分子水生成E,且E中苯环上有两种不同环境的H、分子中含有甲基、5个碳原子形成直链,所以E为。F为。由信息②知C和F发生缩聚反应生成G。

(2)B、D、E、F中均含有羟基。

(3)能发生银镜反应说明含有醛基、能与小苏打溶液生成二氧化碳气体说明含有羧基,此外还剩余3个C,符合题意的异构体有

(4)(3)中无支链的异构体是,与新制氢氧化铜生成、Cu2O和H2O。

(5)E为,其中无不饱和键,不能发生加聚反应,A错误;酚羟基邻位有H,能与溴水生成白色沉淀,B正确;分子中羟基为酚羟基,不能发生消去反应,C错误;苯环能与氢气发生加成反应,D正确。

(6)反应④为酯化反应,酸脱羟基醇脱氢。

完形填空
The story I’m going to tell truly happened in my life.
The other day, I met a man outside the gym who       a movie star. He was handsome and smiling. His upper body was muscular(肌肉发达的)and he       to be on top of the world.
“How are you?” I       with a smile. “I’m doing really well,” he replied in a cheerful voice. His enthusiasm and big smile        the parking garage.        as he walked up, I       his long legs were thin and I saw he had a silver cane (手杖). “Why do you need that cane?” I couldn’t        thinking he had a minor injury. “I have MS,” he answered in a        voice too, as if his broad smile       left his face. Multiple Sclerosis(多发性硬化症)is a very serious disease and often painful. I looked at him from my little red sports car and said, “You        it very well. You seem like a happy man       the MS.” Without losing a bit of his smile he replied, “I am a happy man,” and then added, “I’d be even happier if I had that sports       .”
It was ironic (讽刺的). Just       we spoke, I’d been sitting in that little sports car, feeling sad about my painful shoulder over the last 11 months as I was       after an operation. Here’s a man with a       far tougher than mine, but his positive attitude made him feel no less happiness. He went on with his       of life as usual, which moved me deeply.
It was also a wonderful reminder of that old       , “I cried because I had no shoes. Then I met a man who had no feet.”       your problems, just keep in       that none of us goes through life       and you should make the most of what you have, like the man with MS. Count your blessings.
小题1:
A.stared atB.talked aboutC.agreed withD.looked like
小题2:
A.conductedB.appearedC.performedD.pretended
小题3:
A.questionedB.advisedC.complainedD.greeted
小题4:
A.lit upB.put upC.held upD.kept up
小题5:
A.SoB.AndC.ButD.Though
小题6:
A.watchedB.noticedC.examinedD.checked
小题7:
A.wantB.setC.waitD.help
小题8:
A.cheerfulB.carefulC.wonderfulD.painful
小题9:
A.sometimesB.seldomC.neverD.always
小题10:
A.solveB.handleC.predictD.deal
小题11:
A.in spite ofB.in return forC.due toD.aside from
小题12:
A.gymB.hospitalC.coatD.car
小题13:
A.whenB.untilC.beforeD.since
小题14:
A.recoveringB.mourningC.separatingD.benefiting
小题15:
A.directionB.locationC.situationD.position
小题16:
A.anxietyB.disappointmentC.enjoymentD.excitement
小题17:
A.storyB.newsC.sayingD.lesson
小题18:
A.WhateverB.HoweverC.WhicheverD.Whenever
小题19:
A.headB.brainC.heartD.mind
小题20:
A.completelyB.easilyC.hardlyD.gradually
单项选择题