化学专业外语练习题
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1、c Which of the following belongs to phosphate?( sodium phosphite) (a) PH3 (b) Na3PO3(c) Na3PO4(d) P
2、b 1H and 2H are ____ and occupy the same position in periodic Table. (a) isomers (b) isotopes (c) redox bodies (d) amphoteric compounds
3、d The ____ of a carbon is 12
(a) the weight of molecule (b) molecular number
(c) the weight of atom (d) atomic weight
4、Which of the following belong to nitrate? C
(a) NH3(b) KNO3 (c) KNO2 (d) NO
5、Which of the following belongs to secondary amine? B
4、The number of outmost electron in carbon atom is _C_.
(a) 1 (b) 2 (c) 4 (d) 6
5、In reaction H2 + CuO — H2O + Cu, __B__ is reduced。
(a) H2 (b) CuO (c) Cu (d) H2O
6、Which of the following is charged? _C_
(a) atom (b) molecule (c) proton (d) neutron
7、Who first presented Periodic Table of elements? C
(a) Democritus (b) Boyle (c) Mendeleev (d) Dalton
8、Which of the following is classified into amine? B
(a) NH3 (b) CH3NH2(c) NaNH2(d) N2
9、The substances on the left side of the chemical equation are known as __d_ . (a) reactant (b) reactor (c) reductant (d) reaction
10、Who first present the model of an atom in 1900s? b
(a) Plato (b) Dalton (c) Mendeleev (d) Boyle
11、Which of the following belongs to nitrite? b
(a) HNO2 (b) KNO2(c) Mg3N2 (d) NH3
12、Which of the following belongs to metal? b
(a) selenium (b) sodium (c) Tellurium (d) Helium
13、d The elementary particle of ____ is uncharged。
d
(a) proton (b) electron (c) ion (d) neutron
14、d Bromine has ____ electrons in its outermost energy level。
d
(a) 2 (b) 3 (c) 8 (d) 7
15、a Which of the following is non-metal?
(a) chlorine (b) lead (c) copper (d) mercury
16、a The atomic number of helium is ____.
(a) 2 (b) 4 (c) 3 (d) 0
17、d The horizontal rows of the periodic table are called ____.
(a) energy level (b) groups (c) electron configuration (d) periods
18、a The symbol for element silver is ____.
(a) Ag (b) Sn (c) Hg (d) Au
19、c The atomic number of carbon is ____.
(a) 13 (b) 6 (c) 12 (d) 1
20、b Which of the following is inert element?
(a) hydrogen (b) helium (c) tellurium (d) potassium
21、c Which of the following belongs to halogen?
(a) carbon (b) lithium (c) fluorine (d) neon
22、a Which of the following belongs to noble gas?
(a) neon (b) potassium (c) iodine (d) lead
23、a Which of the following belongs to alkali metal?
(a) silver (b) sodium (c) tellurium (d) bromine
24、b Which of the following belongs to metal halide?
(a) KClO3(b) KCl (c) HCl (d) Cl2
25、a The ____ of carbon is is 1s22s22p2
(a) electron configuration (b) periodicity (c) general property (d) inertness
26、b The general property of metal is ____.
(a) soft (b) lustrous (c) flammable (d) toxic
27、c Fluorine, chlorine, bromine and iodine belong to ____ group。
(a) alkaline metal (b) transition metal (c) halogen (d) alkaline earth metal 28、b Few reactions occur on helium and argon, so the two elements are chemically ____。
(a) reactive (b) inert (c) mild (d) strong
29、a The standard enthalpy for normal oxygen is ____.
(a) 0 (b) 〉0 (c) <0 (d)≠0
30、c The maximum electronegative element in Periodic Table is ____.
(a) H (b) Na (c) F (d) He
31、b Which of the following belongs to the complex?
(a) FeF3 (b) Na3[FeF6](c) Fe3O4 (d) Fe
32、d When solid NaCl is put into water,the solid “disappears”。
The whole system is called ____.
(a) soluble (b) solvent (c) solubility (d) solution
33、d Mn2+ can be ____ to MNO4— by (NH4)2S2O8 in acidic solution.
(a) reduced (b) exchanged (c) substituted (d) oxidized
34、a Charged atoms are called ____.
(a) ions (b) protons (c) electrons (d) molecules
35、b Which of the following is classified into oxo-anion ?
(a) O2- (b) SO42- (c) S2-(d) S2—
36、a Reaction CH4 +Cl2→ CH3Cl + HCl is called ____ reaction。
(a) substitution (b) oxidation (c) reduction (d) exchange
37、c Benzene is often used as ____ both in laboratory and in chemical industry.
(a) solution (b) solvation (c) solvent (d) solute
38、c Standard entropy of any species is ____.
(a) 0 (b) ≤ 0 (c)> 0 (d) both (b) and (c)
39、b If aqueous NaCl is wanted to separate, ____ is good choice。
(a) substitution (b) distillation (c) coordination (d) bond
40、b Alcohol is readily ____ and we smell it everywhere in air。
(a) soluble (b) volatile (c) reactive (d) precipitated
41、b As a general rule, the coordination compounds(the complex) with coordination number of six are observed _____ structure
(a) tetrahedral (b) octahedral (c) octagonal (d) bipyridyl
42、d The demanded energy that a gaseous neutral atom loses one electron at thermodynamic standard condition is called the first ____。
(a) energy level (b) electron configuration (c) activation energy (d) ionization energy
43、c NaCl is ____ in water。
(a) solution (b) solvent (c) soluble (d) precipitated
44、d When AgNO3 is mixed with NaCl, AgCl ____ is developed。
(a) solution (b) solvent (c) soluble (d) precipitated
45、b Which of the following belongs to hydrocarbon?
(a) C11H22O11 (b) C8H18 (c) CH3COOH (d) H2SO4
46、a In K4[FeF6], the charge of the complex part is ____.
(a) —4 (b) +2 (c) +1 (d) –1
47、b Which of the following belongs to substitution reaction?
(a) H2 + Cl2— HCl (b) C6H6 + Cl2— C6H5Cl + HCl (c) H2O — H2 + O2 (d) S+ O2 - SO2
48、a In K4[FeF6], the oxidation number(or state) of Fe is ____。
(a) 2 (b) 0 (c) 6 (d) 4
49、__c__ is defined as required energy to break chemical bond into neutral species at thermodynamic standard condition。
For example breaking H-H bond into two H· atom requires 104kJ/mol.
(a) Lattice energy (b) Hydration energy (c) Bond energy (d) Activation energy
50、a When gaseous HCl dissolves into water, ____ solution forms。
(a) acidic (b) basic (c) salty (d) no
51、b When ionic compounds dissolve in water, the ions interact with water molecules. Such process is called ____。
(a) coprecipitation (b) ionization (c) hydration (d) coordination
52、d When ions dissolve in water, they are surrounded by water molecules。
Such process is called ____.
(a) sublimation (b) substitution (c) ionization (d) solvation
53、c When benzene is added in aqueous solution containing iodine, most of iodine then transfers into benzene because of the more solubility of iodine in benzene。
Such process is called ___。
(a) refinement (b) titration (c) extraction (d) diffraction
54、d Which of the following is classified into transition element?
(a) silicon (b) tin (c) helium (d) copper
55、__b__ H2SO4 is often used in chemical experiment。
(a) Volatile (b) Concentrated (c) Flammable (d) Inert
56、a Electrolysis of aqueous solution will produce____.
(a) H2(b) H (c) water (d) OH-
57、d Zinc reacts with ____ H2SO4 to generate hydrogen gas at room temperature.
(a) concentrated (b) cold (c) hot (d) dilute
58、a Which of the following belongs to oxoacid?
(a) H2SO4 (b) H2S (c) H2O (d) HS-
59、c Which of the following belongs to diatomic molecule?
(a) HCN (b) KClO3 (c) HCl (d) C8H10
60、c If solid NaCl is added into its saturation solution , ____ is developed.
(a) transparent solution (b) colloidal (c) precipitate (d) dissolution
61、c Which of the following belongs to alkali earth metal?
(a) potassium (b) lead (c) calcium (d) boron
62、b Which of the following belongs to hydride?
(a) CuSO4·5H2O (b) H2S (c) C6H6 (d) H2SO4
63、a Which of the following belongs to carbohydrate?
(a) C11H22O11 (b) C10H8 (c) HCHO (d) CO2
64、a Which of the following belongs to representative element?
(a) carbon (b) iron (c) copper (d) zinc
65、d Which of the following belongs to alkaline earth element?
(a) potassium (b) mercury (c) boron (d) magnesium
66、a Benzene usually carries out ____ reaction, as described below
C6H6 +Cl2-———---——C6H5Cl + HCl
(a) substituent (b) substitution (c) displacement (d) alternative
67、a The general formula of saturation alkane is ____
(a) C n H2n+2 (b) C n H2n(c) C n H2n-2(d) C n H2n—6
68、c There are ____ carbon atoms in parent chain of 2,3-dimethylbutane.
(a) 2 (b) 5 (c) 4 (d) 6
69、c Which of the following is trans-2-butene?
70、d The vinyl group has the structure of ____.
(a) CH3CH2- (b) C6H5- (c) CH≡C— (d) CH2=CH-
71、b Compounds that containing both hydroxyls and carbon-carbon double bonds are called ____
(a) polyols (b) unsaturated alcohols (c) cyclols (d) thiol
72、c Dienes contain ____ carbon-carbon double bonds。
(a) di— (b) eth— (c) two (d) secondary
73、a Which of the following is classified into alkenol?
(a) CH2=CHCH2OH (b) CH3CH2CH2OH (c) CH≡CCH2OH (d)HOCH2CH2CH2OH
74、b Vinylcyclopropane is classified into ____
(a) alkane (b) alkene (c) alkyne (d) alkenyne
75、c The functional group of alcohol is ____。
(a) hydrate (b) hydroxide (c) hydroxyl (d) hydride
76、a Alkynes contain carbon—carbon ____ bond
(a) triple (b) three (c) tertiary (d) prop
77、b Methylenecyclopentane is classified into ____
(a) alkane (b) alkene(c) alkyne (d) alkenyne
78、c Which of the following is the formula or general formula of ammonia?
(a) C6H5OH (b) C6H5NH2(c) NH3 (d) RNH2
79、a A primary amine contains ____ hydrogens attached to its nitrogen atom。
(a) 2 (b) 3 (c) 4 (d) no
80、d Reaction between methanamine and hydrochloric acid produces ___ salt。
(a) imide (b) imine (c) amide (d) ammonium
81、b The functional group of amine is ____.
(a) ammonia (b) amino (c) ammonium (d) ammine
82、a Alkanes contain carbon-carbon ____ bonds。
(a) single (b) double (c) triple (d) both (b) and (c)
83、d (+)-Glucose (C6H12O6) is ___ aldehyde, which contains hydroxyls and distinguishes
from common aldehydes or alcohols in properties。
(a) polyhydrate (b) many-hydrooxy (c) multihydroxyl (d) polyhydroxy
84、b Compounds containing -OH and C=C groups are called ____ alcohols, because of the presence of carbon—carbon double bonds。
(a) primary (b) unsaturated (c) monohydroxyl (d) polyolic
85、b Oxacyclopropane contains ____ atom
(a) nitrogen (b) oxygen (c) sulfur (d) phosphorus
86、a azacyclopropane contains ____ atom
(a) nitrogen (b) oxygen (c) sulfur (d) phosphorus
87、 azacyclopropane is classified into ___?_
(a) amine (b) ether (c) alkane (d) alkene
88、a Oxacyclopropane contains ____ carbons
(a) 2 (b) 3 (c) 4 (d) 5
89、d Which of the following belongs to tertiary amine?
(a) CH3NH2(b) (CH3)2NH (c)(NH3)3N (d) N(CH3)4+
90、a Which of the following contains carbonyl group?
(a) CH3COOH (b) CH3OCH3 (c) CH3CH2OH (d) CH3CH2Cl
91/c Which of the following contains hydroxyl group?
(a) CH3CHO (b) CH3OCH3 (c) CH3CH2OH (d) CH3CH2Cl
92、c Which of the following belongs to saturated ketone?
(a) CH3CHO (b) CH2=CHCOCH3 (c) CH3CH2COCH3 (d) CH3COOH
93、c Carboxylic acids react with alcohols to form ____。
(a) acid halides (b) acid anhydrides (c) esters (d) amides
94、c The general formula of organic amides is ____。
(a) RNH2 (b) RNH3+X- (c) RCONH2 (d) NaNH2
95、b Decarboxylation, elimination of the ___ as CO2is of importance for β-keto acid。
(a) —OR (b)—COOH (c)—CHO (d) —CONH2
96、a Reaction of acid chloride with water forms ____.
(a) carboxylic acid (b) chlorocarboxylic acid (c) ester (d) phenol
97、b We can deduce that thiophene contains ___ element though its detailed structure is unknown。
(a) O (b) S (c) N (d) C
98、a Which of the following is neutralization reaction?
(a) acid and base (b) salt and salt (c) salt and base (d) acid salt
99、b Reaction of carboxylic acid with alcohol is defined as ____。
(a) etherification (b) esterification (c) epoxide (d) elimination
100、b Reaction of acid anhydrides with ammonia produce____
(a) ammonium (b) amide (c) amine (d) amino
101、d In K4[FeF6], the Fe is called ____。
(a) dipole moment (b) coordination number (c) ligand (d) centre ion or atom
102、a Concentration of concentrated sulfuric acid is ______
(a) 18M (b) 12M (c) 6M (d) 2M
103、a The detailed, step—by—step description of a chemical reaction is called ____, e.g., hydrogen reacts with oxygen to generate water。
Such reaction involves the following step:
H2→ H·
H· +O2→ HO· + O·
H· + HO·→ H2O
(a) mechanism (b) dynamic equation (c) activation energy (d) process
104、a Hydrolysis of FeCl3 shows ____
(a) acidic (b) neutral (c) alkaline (d) amphoteric
105、c Carbocation carries ____ charge。
(a) no (b) neutral (c) positive (d) varying
106、a A large excess of alcohol is added in the following reaction, CH3COOH +
CH3CH2CH2OH——----CH3COOC3H7 + H2O, the equilibrium shifts ____.
(a) forwards (b) backwards (c) nothing (d) uncertainy
107、c The reaction CH3COOH+ C2H5OH ————- CH3COOC2H5 is a ____ reaction because it proceeds in both direction。
(a) forwards (b) backwards c) reversible d) reverse
108、a If an entity combines with a proton, it is called ____.
(a) protonation (b) protolysis (c) protophile (d) non-protic
109、c The key raw material for chlor-alkali is ____.
(a) lime (b) brine (c) soda ash (d) wood pulp
110、a Soda ash is composed of ____.
(a) sodium carbonate (b) sodium bicarbonate (c) ammonium bicarbonate (d) mixture between and sodium carbonate and sodium bicarbonate
111、c According to the reaction 2NaCl +2 H2O -——-—————2NaOH + H2 +Cl2, the ration of caustic soda to chlorine is ____
(a) 1:2 (b )1:1 (c)2:1 (d)1:0
112、c Sodium hydroxide, called ____ because of its corrosion, will burn or, even corrode our tissue and skin if it spots on them.
(a) soda ash (b) caustic sodium (c) caustic soda (d) lime
113、d Quicklime is manufactured by the thermal _______ (1200℃~1500℃) of limestone according to the equation:
CaCO3—----—— CaO + CO2
(a) combination (b) transfer (c) hydrolysis (d) decomposition
114、b Which of the product derived from chlor-alkali industry?
(a) electricity (b) chlorine (c) limestone (d) refractory
115、c When an ammoniated solution of salt is bubbled by carbon dioxide, the process is called ____.
(a) decomposition (b) calcine (c) carbonation (d) oxidation
116、c In Solvay Process, separation between NaHCO3 precipitates and liquor should be carried out through ____.
(a) drying (b) distillation (c) filtering (d) concentration
117、c To remove some water from wet CaCO3, ____ is available。
(a) electrolysis (b) metathesis (c) drying (d) solubility product
118、c If you want to clear water from aqueous NaCl, the reasonable approach is ____. (a) cracking (b) humidification (c) distillation (d) agitation
119、c If a solid NaCl is available from its aqueous solution, the reasonable method is ____
(a) lixiviation (b) sedimentation (c) crystallization (d)
centrifugation
120、d Which of the following is classified into metathesis?
(a) H2 + O2— H2O (b) HCl + NaCl - NaCl + H2O
(c) Zn + HCl — ZnCl2 + H2 (d) Na2SO4 + BaCl2— BaSO4 + NaCl
121、d Silicate—gel is often used as ____ in chemical laboratory.
(a) oxidant (b) packing material (c) initiator (d) drying agent
122、b If we want to obtain solid NaCl from its aqueous solution, the reasonable operation is ____。
(a) pyrolysis (b) crystallization (c) adsorption (d) adsorption
123、d Which one of the following belongs to chloride?
(a) Cl2 (b) NaClO3(c) HClO3 (d) NaCl
124、b All detergents, such as soap, contain ____。
(a) chromatograph (b) surfactants (c) bleaching powder (d) catalysts 125、Look at the following two electrode reaction(1) or (2):
(1) Cl- -2e → Cl2
(2) 2H2O +2 e → H2 +2OH—
a Electrode (1) is ____
(a) cathode (b) anode (c) negative electrode (d) electron
127、c Bleaching powder is often used as ____ in public water supplies.
(a) infection (b) alkalisource (c) disinfectant (d) raw material
128、a The raw material to produce sulfuric acid is____.
(a) sulfide (b) sulfur (c) sulfate (d) sulfonate
129、c Electrolysis of aqueous HCl will generate __?__。
(a) hydride (b) hydrogen ion (c) hydrogen (d) hydrate
130、b Which of the following shows alkaline?
(a) chlorine (b) caustic soda (c) sulfuric acid (d) hydrogen
131、a The method to produce industrially sulfuric acid is ____.
(a) contact process (b) Solovy Process (c) electrolysis (d) lead chamber 132、c Which of the following belongs to sulfide?
(a) Na2S2O3 (b) Na2SO3 (c) Na2S (d) Na2SO4
133、c If excess sulfur trioxide is dissolved into pure sulfuric acid, ____ forms。
(a) concentrated sulfuric acid (b) dilute sulfuric acid
(c) oleum (d) divanadium pentoxide
134、b The method to synthesize ammonia is ____ .
(a) Solvay Process (b) Habor Process
(c) Catalytic Reforming (d) methanation
135、d Prior to reforming reaction, the syngas requires _______ process, in which sulfur—containing compounds must be removed as they poison both the reforming catalysts and Harber catalysts.
(a) sulfonation (b) sulfurization (c) sulfates (d) desulfurization
136、d If a steam is required to be converted into liquid, _____ is available。
(a) absorption tower (b) reformer (c) membrane cell (d) condenser
137、c Benzene is ____ with concentrated nitric acid to form nitrobenzene, as described below:
C6H6 + HNO3 - C6H5NO2 + H2O
(a) nitrogenated (b) nitrized (c) nitrated (d) nitricated
138、b The following reaction is exothermic:
4NH3 + 5O2— 4NO + 6H2O, therefore, low temperature favors the reaction ____。
(a) backwards (b) forwards (c) no shift (d) uncertain
139、a In the following reaction, Cu + 2H2SO4— CuSO4 + SO2 + 2H2O
____ is oxidized.
(a) Cu (b) H2SO4 (c) SO2(d) H2O
140、b The raw material to produce industrially nitric acid is ____。
(a) nitrogen (b) ammonia (c) amine (d) ammine
141、a Dehydration of pure nitric acid will give ____.
(a) H2O (b) N2O5(c) NO2 (d) NO
142、c About 65% nitric acid reacts with ammonia to give ____。
(a) nitrogen (b) ammonium nitrate (c) nitrogen dioxide (d) dinitrogen pentoxide。
143、b Which of the following is an important precursor for petrochemicals?
(a) ethane (b) ethylene (c) ethanol (d) ethanoic anhydride
144、a Demethylation of methylcyclohexane gives ____.
(a) cyclohexane (b) cyclohexyl (c) cyclohexene (d) benzene
145、Dehydrogenation of cyclohexane gives __?__.
(a) cyclohexene (b) cyclohexanone (c) cyclohexyl (d) cyclohexanecarboxylic
acid
146、a Precisely, the molecular weight of polymer, often greater than 107, equals to that of ____ multiplied by degree of polymerization。
(a) monomer (b) mole (c) covalent bond (d) radical
147、b Vulcanization of rubber refers to addition of some ____ in the framework of rubber body.
(a) vanadium (b) sulfur (c) chlorine (d) nitrogen
148、c When the degree of polymerization reaches less than 20, we say the polymer is ____.
(a) the intermediate (d) the distillate (c) oligomer (d) monomer
149、c At the top of the distillation tower, there is a ____ to cool the vapor into reflux liquid and to recycle into the tower.
(a) heat exchanger (b) furnace (c) working tank (c) condenser
150、bIn sulfuric acid industry, elemental sulfur is combusted in ____ to general sulfur dioxide。
(a) fractionating tower (b) furnace (c) steam stripper (d) working tank
151、c At the bottom of the distillation tower, there is a(an) ____ to boil the liquid into vapor and to recycle into the tower.
(a) still (b) auxiliary (c) tank (c) boiler
152、d If a new bond between polymeric chains is developed, the process is called ____.
(a) covalence (b) side—chain (c) fabrication (d) cross-linking
153、a Which of following belongs to synthetic polymer?
(a) plastic film (b) silk (c) cellulose (d) starch
154、a Copolymers are derived from polymerization of ____ monomers, such as C6H5OH and HCHO.
(a) different (b) usual (c) the same (d) conventional
155、d Any commodity should have a technical ____ if they go into public commerce。
(a) specific (b) specify (c) specialty (d) specification
156、c The ____ of Zn—Cu alloy(solid solution) is as follow: 30%Zn and 70%Cu.
(a) composite (b) component (c) composition (d) complex
157、d As a convention, [Cu(NH3)4]SO4 is never considered a salt, but a ____.
(a) composite (b) component (c) composition (d) complex
158、b After synthesis of a product, the product must be ___ because the mixture contains the desirable products as well as the remaining reactants, catalysts, by—products。
(a) pre-treated (b) post-treated (c) blended (d) eliminated
159、a When ethanol is dissolved into water, a ____ solution is developed。
(a) homogeneous (b) heterogeneous (c) viscose (d) latent
160、a The reaction H2 + O2 --——-H2O is ____。
(a) exothermic (b) endothermic (c) isothermal (d) thermodynamic
161、c Which of the follow is used as the semi—conductor material?
(a) Fe (b) N2(c) Si (d) He
162、c Homopolymers are derived from polymerization of ____ monomers, such as polyethylene。
(a) different (b) usual (c) the same (d) conventional
163、a Activate carbon is often used as adsorbent in laboratory due to its large ____ surface. (a) specific (b) specify (c) specialty (d) specification
164、b To obtain pure substance from the mixture, ____ is a good choice.
(a) catalysis (b) purification (c) reactor design (d) solubility
165、d If a reaction is carried out at a very high pressure, _____ is a good choice. (a) furnace (b) fractionating tower (c) heat exchanger (d) autoclave 166、d Which of the following is classified into polymer?
(a) formaldehyde (b) silica (c) sulfur trioxide (d) epoxy resin
167、a Which of the following is classified into synthetic polymer?
(a) resin (b) vinyl chloride (c) epoxide (d) silica。