化学化工专业英语试卷
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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)