化学化工专业英语试卷

  • 格式:docx
  • 大小:15.74 KB
  • 文档页数:3

下载文档原格式

  / 3
  1. 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
  2. 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
  3. 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。

黄淮学院化学化工系

2012-2013学年度第二学期 期末考试《专业英

语》A 卷

注意事项:本试卷适用于10级(本科)化学专业学生

1. octane :

2. decyl :

3. butanol :

4. hexene :

5. heptyl aldehyde :

6. oxyacid :

7. aliphatic compound : 8. oxidation reaction : 9. organic chemistry : 10.transition element : 11. orbital electron : 12.solubilizer : 13.quantative analysis : 14.negative charge :

15.carbonate :

16.surfactant : 17.docosane hectane : 18.alkane :

19.sodium hydroxide : 20.chloride : 1. 酮: 2. 乙氧基化物: 3. 键角: 4. 热力学函数: 5. 同系列: 6. 甲苯: 10.电离能:

1.Progress in the so-called “active ingredients ”, which enhance and extent this cosmetic effect measurably, is large enough area to merit another separate aritcle. 2.In contrast to inorganic compounds, the molecular attraction of organic compounds is weak, so organic compounds are usually volatile and possess low melting points.

3.Benzene can undergo the

typical substitution reactions

of halogenation,

nitration, sulphonation and

Friedel-Crafts reaction. 4.Evaporation is conducted by vaporizing a portion of the

solvent to produce a

concentrated solution or thick

liquor.

5.The presence of a substituent group in benzene exerts a

profound control over both

orientation and the ease of

introduction of the entering

substituent.

6.The functional group of a ketone

consists of a carbon atom

connected by a double bond to

an oxygen atom.

7.At equilibrium, these two rate are equal; cupric ion is still

reacting with ammonia

molecules to form the complex,

and the complex is still

decomposing, but just as much

cupric ammonia complex is

being decomposed in unit time

as is being formed.

8.The reaction of an acid chloride with an amine is used

commercially in the

manufacture of the very

important range of

semi-synthetic penicilings,first

produced by the Beechan

Group in 1959.

9.Thus satisfactory binding

propertise are essential for

trouble-free compression and

the production of good quality

cakes over long manufacturing

periods.

10.The synthesis of organic

compounds involves

conversion of available

substances of known

structure, through a sequence

of particular, controlled

chemical reactions, into other

compounds bearing a desired

molecular structure.

The active ingredients were identified in the unsaponifiable fraction of this vegetable product. After solvent extraction and drying, the pure unsaponifiables are obtained in the form of a waxy solid. This waxy solid is then redissolved in untreated shea butter to increase the unsaponifiable content and thus lead to the unsaponifiable shea butter concentrate. Used in cosmetics at levels of up to 2%,it provides

四、Translate the following paragraph into Chinese (本大题共1个小题,共25分)