PETROLEUM QUIZES

1. Petroleum can be classified as mixture of ….
a. hydrocarbon
b. aliphatic hydrocarbon
c. aromatic hydrocarbon
d. aliphatic and alisiclic hydrocarbon
e. aliphatic ans aromatic hydrocarbon

2. Crude oil is separated into different fractions with different boiling points and composition by fractional distillation. The wrong answer about these fractions is ….
a. Gas C1 – C5, gas cookers
b. Gasoline, C5–C10, combustion engines
c. Kerosene, C11 – C14 roofing
d. light gas-oil, C13 – C17,diesel engines
e. heavy gas-oil, C18 – C25, lubricants

3. Fraction distillation of a sample of cruide oil produce the fraction . The boiling point of the fraction are given below. Which fraction has the biggest molecules with approximate boling points (oC) below?
a. 20oC - 40oC
b. 40oC – 120oC
c. 120oC – 160oC
d. 160oC – 250oC
e. Above 250oC

4. Fractional distillation can be used to separate crude into kerosene, diesel oil, lubricating oil and petrol. What is the correct order of their boiling points ?
Lowest boiling point --> Highest boiling point
a. Lubricating oil, Kerosene, Diesel, Lubricating oil
b. Kerosene, Diesel, Lubricating oil, Petrol
c. Diesel, Kerosene, Lubricating oil, Petrol
d. Lubricating oil, Kerosene, Petrol, Petrol
e. Kerosene, Diesel, Petrol, Lubricating oil

5. Which of the following petroleum fraction is correctly matched to its use ?
a. Bitumen, as feedstock for chemical industry
b. Naptha, for making road
c. Lubricating oil, for making polishes and waxes
d. Diesel oil, as jet fuel
e. LNG, for making plastic

6. Natural gas is mainly … with smaller amounts of the other gaseous alkanes.
a. methane
b. ethane
c. propane
d. butane
e. pentane

7. At which location in the distillation column will petroleum gas, C1 - C4 hydrocarbons, be most likely to be collected?
First Column - Fraction A
Second Column - Fraction B
Third Column - Fraction C
Forth Column - Fraction D
Fifth Column - Fraction E
a. A
b. B
c. C
d. D
e, E

8. The hydrocarbons found in LPG contain … carbon atoms per molecule.
a. 1-2
b. 3-4
c. 5-12
d. 13-18
e. 17

9. Gasoline hydrocarbons contain … carbon atoms per molecule.
a. 1-2
b. 3-4
c. 5-12
d. 13-18
e. 17

10. The substance contains in the gasoline that has a high value of combustion is ....
a. heptanes
b. isoheptane
c. isooctane
d. octane
e. 2-methylheptane

11. The formulae of isooctane is ....
a. (CH3)2(CH2)6
b. (CH3)2CH(CH2)5
c. (CH3)3CCH2CH(CH3)2
d. (CH3)3C(CH2)3CH3
e. (CH3)3CCH2CH(CH3)2

12. For a gasoline to function properly in an engine, it should not begin to burn before it is ignited by the spark plug. If it does, it gives engine “knock.” The antiknock characteristics of a gasoline are rated by the octane-number scale. This scale is based on ….
a. heptane, given an octane number of 0
b. heptane, given an octane number of 100
c. 2,2,4-trimethylpentane, given an octane number of 0
d. 2,2,4-trimethylpentane, given an octane number of 100
e. heptane with the octane no. of 0 and isooctane with the octane no. of 100

13. The octane number of pure gasoline is 80%. The meaning of this percentage is the fuel contains ....
a. octane : heptane = 4 : 2
b. 80% octane and 20% heptane
c. 80 % heptane and 20% octane
d. 100% long chain hydrocarbon
e. 80% octane

14. The gasoline which has the octane number more than 92 is (are) ….
(1) premix (2) pertamax (3) pertamax plus
a. (1)
b. (2)
c. (3)
d. (1) and (2)
e. (2) and (3)

15. Recently, tetraethyllead doesn’t use for anti-knocking, because it ….
a. contains Pb
b. caused air pollution
c. doesn’t work properly
d. reacts with gasoline
e. consists of molecules

16. MTBE (Methyl Tertiary Butyl Ether) is used for ....
a. anti-knocking
b. improving gasoline
c. increasing the energy of gasoline
d. fuel's additive agent
e. removing TEL

17. Petroleum is separated by distillation into fractions such as gasoline and kerosene. These fractions are usually processed further—for example, to obtain a greater quantity of gasoline with the desired fuel characteristics. This processing is called ….
a. refining
b. solubility
c. filtration
d. evaporation
e. coagulation

18. One of the equations below is the cracking reaction. The correct answer is ….
a. C17H36 --> C8H18 + CH3CH=CH2 + 3CH2=CH2
b. C17H36 + 26 O2 --> 17 CO2 + 18 H2O
c. C8H16 + H2 --> C8H18
d. C8H16 + Br2 --> C8H16Br2
e. C8H16 + HCl --> C8H17Cl

19. Catalytic cracking of C16H34 will produce ….
a. octene and octane
b. octane only
c. octene only
d. benzene and decane
e. hexane and decane

20. Plastics are chemicals which are made from ....
a. fuel
b. benzene
c. gasoline
d. alkene
e. hydrocarbons

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HYDROCARBON QUIZES Part III

CHEMICAL REACTION


1. Alkanes are saturated hydrocarbons and therefore, are generally ….
a. reactive
b. unreactive
c. quite reactive
d. more reactive than alkenes
e. less reactive than alkenes

2. The balanced equation for the combustion of pentane is ….
a. C3H8 + 5 O2 → 3 CO2 + 4 H2O
b. C5H12 + 8 O2 → 5 CO2 + 6 H2O
c. 2 C3H8 + O2 → 3 CH4 + 2 H2O
d. 2 C5H12 + 2 O2 → 10 CH4 + 2 H2O
e. 4 C5H12 + 2 O2 → 20 CH4 + 4 H2O

3. The reaction of alkanes with halogens is called ….
a. addition
b. substitution
c. oxidation
d. combustion
e. hydrogenation

4. What is the major product obtained from the monobromination of 2-methylbutane in the presence of light at room temperature?
a. 1-bromo-2-methylbutane
b. 2-bromo-2-methylbutane
c. 2-bromo-3-methylbutane
d. 3-bromo-2-methylbutane
e. 1-bromo-3-methylbutane

5. Alkanes react with the halogens via free-radical substitution reaction in the presence of sunlight. When methane reacts with chlorine in sunlight, so ….
a. a chain reaction is may not be occurred
b. a carbon tetrachloride is the main product
c. one or more chlorine atoms may replease hydrogen atoms
d. the products do not depend on the amounts of halogen and alkane
e. the yellowish-green colour of Cl2 fades and HCl(g) can be detected

6. The product of the hydrogenation of 2-butene is ….
a. n-butane
b. butane
c. 2-butane
d. 2-butene
e. 2-methylpropane

7. With which of the following would you expect to observe a color change when it was mixed with bromine water?
a. n-butane
b. 2-butene
c. 2-methylpropane
d. 2-methylbutane
e. Cyclobutane

8. The addition of Br2 to an alkene occurs so readily that bromine dissolved in carbon tetrachloride, CCl4. It is a useful reagent to test for unsaturation. When a few drops of the solution are added to an alkene, so ….
a. the bromine immediately react
b. the color of bromine changes
c. the reaction occurs suddently
d. the redbrown color of the bromine changes
e. the redbrown color of the bromine is immediately lost

9. The correct statement about the Markownikoff’s rule is ….
a. the richer gets rich
b. there is only one product formed
c. HBr is a symmetrical reagents
d. H2O could not be added to alkenes
e. H atom of HCl attacts C atom of C = C

10. The main product when HBr adds to 1-butene is ….
a. 2-butene
b. n-butane
c. 1-bromobutene
d. 1-bromobutane
e. 2-bromobutane

11. The addition of HCl to 2-methyl-2-butene follows Markovnikov's Rule. The product is
a. 2,3-dichloro-2-methylbutane
b. 2-chloro-2-methylbutane
c. 3-chloro-2-methylbutane
d. 1-chloro-2-methylbutane
e. 2-chlorobutane

12. If an excess of HCl is added to CH3C≡CH, the product is ….
a. propene
b. propane
c. 1-chloropropene
d. 1,1-dichloropropane
e. 2,2-dichloropropane

13. The reaction between CH2CHCH3 and H2O(g) will produce ….
a. Propene
b. propane
c. 1-propanol
d. 2-propanol
e. 1,2-propanediol

14. Ethene undergoes addition polymerization to give ….
a. ethane
b. butane
c. micromolecules
d. polyethene
e. polyethane

15. If 1-pronanol is added by sulfuric acid at 180ºC, the main product is ….
a. propane
b. propune
c. propene
d. 2-propanol
e. Propilsulphate

16. Butylbromide reacts with potassium hydroxide in alcohol. The main product is …
a. 1-chlorobutane
b. 2-chlorobutane
c. 1-chlorobutane
d. butane
e. butane

17. Which of the following could be dehydrohalogenated to give 2-butyne?
a. 2,2,3,3-tetrabromobutane
b. 2,2-dibromobutane
c. 1,4-dibromobutane
d. 1,2,3,4-tetrabromobutane

HYDROCARBON QUIZES Part II

ISOMERS


1. Structural isomers have the same molecular formula but different ….
a. molecular mass
b. structural formula.
c. number of atoms
d. empirical formula
e. atomic structures

2. Butane and isobutane are structural isomers, compounds with the same molecular formula but different structural formulas. Because these isomers have different structures, they have different ….
a. mass
b. volume
c. boiling point
d. molecular mass relative
e. mass’ percentage of elements

3. The following pairs which isomers are ..
a. n-heptane and cycloheptane
b. 2-methylpentane and n-pentane
c. 3-ethylpentane and 3-ethylheptane
d. 3-ethylpentane and 2-methyl heptane
e. 3-methylpentane and3-methylbutane

4. How many structural isomers does pentane have?
a. 2
b. 3
c. 4
d. 5
e. 6

5. The isomer of pentane is ….
a. C(CH3)4
b. CH3 – (CH2)2 – CH3
c. CH(CH3)2 – CH2 – CH2 – CH3
d. CH3 – CH2 – (CH3) – CH3
e. CH3 – (CH2)3 – CH(CH3)2

6. The following compounds are isomers of hexane, except ….
a. 3-methyl pentane
b. 2,2 – dimethyl propane
c. 2,3 – dimethyl butane
d. 2-methylpentane
e. 2,2 – dimethyl butane

7. 2-methyl-1-propene is chain isomer of ….
a. 1-propene
b. 1-butene
c. 2-butene
d. 2-methyl-1-butene
e. 2-methyl-1-pentene

8. Which compounds are classified as chain isomers?
a. ethene and propene
b. 2-butene and 2-pentene
c. propene and 2-methyl-1-propene
d. 2 metil-1-propena and 2 metil-1-butena
e. 5-ethyl-2-methyl-3-heptene and 2,2,5,5-tetra methyl-3-heksene

9. 1-pentene and 2-pentene can be classified as ….
a. chain isomers
b. geometric isomers
c. positional isomers
d. functional isomers
e. structural isomers

10. How many isomers are there of C5H11Cl?
a. Five
b. Six
c. Seven
d. Eight
e. Nine

11. Cyclobutane and 2-butene can be classified as … isomers.
a. chain
b. position
c. function
d. geometric
e. optic

12. CH3CH=CHCH2CH=CHCH3 is functional isomer with ….
a. 2,5-heptadiene
b. 1,2-heptadiene
c. 5-methyl-1,2-hexadiene
d. 1-methyl-cyclohexane
e. 2-heptyne

13. What feature of the C=C bond in alkenes causes cis/trans isomerism?
a. Its weight
b. Its length
c. Its strength
d. The fact it cannot be broken
e. The fact it is difficult to rotate the bond

14. The following compounds have geometrical isomers, except ….
a. 2-butene
b. 2-methyl-2-butene
c. 2-hexene
d. 3-hexene
e. 2-methyl-3-hexene

15. What is the best name for the molecule below?
        CH(CH3)=CH-CH(CH3)(C2H5)
a. cis-4-methyl-2-hexene
b. trans-4-methyl-2-hexene
c. cis-4-ethyl-2-pentene
d. trans-2-ethyl-3-pentene
e. cis-2-ethyl-3-pentene

HYDROCARBON QUIZES Part I

1. You encounter many organic compounds everyday. Some organic compounds are ethanol (grain alcohol), ethylene glycol (automobile antifreeze), and acetone (nail polish remover). Another organic compound which can be found in the daily life is ….

a. salt
b. water
c. sugar
d. bone
e. mineral

2. Hydrocarbon is one of the organic compound that mainly contains ….
a. carbon
b. hydrogen
c. oxygen
d. carbon and hydrogen
e. carbon and oxygen

3. Hydrocarbons are classified into two main types, aliphatic and aromatic. The following substances which cannot be classified as an aliphatic hydrocarbon is ….

a. alkane
b. alkene
c. alkyne
d. benzene
e. cycloalkane

4. Closed chains of carbon atoms can be explained as ….
a. a chain which only has carbon atoms
b. a cyclic bond among carbon atoms
c. a bond among carbon atoms that form a branched chains
d. a cyclic chain which has a double bond
e. a special chain which contains carbon and hydrogen atoms

5. The special features of carbon below are correct, except ….
a. has tetravalence
b. forms covalence of four
c. can bond one of another
d. the atomic number is 6
e. makes possible branched chains

6. A hydrocarbon in which all carbon atoms are bonded to the maximum number of hydrogen atoms is classified as … hydrocarbon
a. saturated
b. aromatic
c. alkene
d. alkyne
e. cyclic

7. Unsaturated hydrocarbons are ….
a. alkane and alkene
b. alkane and alkyne
c. alkene and alkyne
d. cycloalkane and alkene
e. alkane, alkene, and alkyne

8. Methane is the simplest hydrocarbon. The wrong statement about methane is ….
a. consists of one carbon atom
b. there are 8 electron’s pairs
c. four hydrogen atoms are bonded
d. has four C—H bonds
e. forms a tetrahedral structure

9. The general molecular formula of alkanes is ….
a. CnHn
b. CnH2n
c. CnH3n
d. CnH2n+2
e. –CnH2n+1–

10. What is the common name for the following alkyl group?
       CH3 - C(CH3)3 -
a. Isobutyl
b. Isopropyl
c. tert-butyl
d. sec-butyl
e. isopropyl

11. A homologous series of alkanes is a series of alkane compounds in which one compound differs from a preceding one by ….
a. –CH–
b. –CH2–
c. –CH3
d. –CnH2n–
e. –CnH2n+1–

12. Members of a homologous series have similar … properties.
a. chemical
b. physical
c. general
d. natural
e. special

13. The number of C atoms primer, secunder, tertier of CH3(CH2)2CH(CH3)CH2C(CH3)3 are ….
a. 5, 1,1, 1
b. 4, 2, 1, 1
c. 5, 2, 1, 1
d. 4, 2, 2, 1
e. 4, 1, 2, 1

14. Which compound is likely to have the highest boiling point?
a. n-butane
b. n-hexane
c. decane
d. C13H18
e. C8H18

15. Which one of the following hydrocarbons is a gas at room temperature and pressure?
a. Propane
b. Hexane
c. Octane
d. Nonane
e. Decane

16. What is the IUPAC name of the molecule whose carbon skeleton is shown below?
C
│
C C C
│ │ │
C - C - C - C – C
a. nonane
b. 2,3 – dimethylheptane
c. 1-ethyl - 3,4 – dimethylpentane
d. 5 - ethyl - 2,3 – dimethylpentane
e. 2,3 - dimethyl - 5 – ethylpentane

17. The IUPAC name of the following compound is ....
       CH(CH3)3
a. butane
b. n-butane
c. isobutane
d. cyclobutane
e. 2-methylpropane

18. The condensed structural formula of 4-ethyl-3-methylheptane is ….
a. C2H5CH(CH3)CH(C2H5)(CH2)2CH3
b. C2H5CH(CH3)CH(C2H5)(CH2)2CH3
c. C2H5CH(CH3)CH(C2H5)(CH2)2CH3
d. C2H5CH(CH3)CH(C2H5)(CH2)2CH3
e. C2H5CH(CH3)CH(C2H5)(CH2)2CH3

19. A compound mistakenly named: 3,4-dimethylbutane should be named correctly as ....
a. 2-methylpentane
b. 3-methylpentane
c. 4-methylpentane
d. 2,2-dimethylbutane
e. 2,3-dimethylbutane

20. The IUPAC name of CH3CH2C(CH3)2(CH2)4CH3 is ….
a. 3-methyloctane
b. 3-dimethyloctane
c. 3,3-dimethyloctane
d. 3-dimethylheptane
e. 3,4-dimethyloctane

21. What is best name for the molecule below?
       CH(CH3)(C2H5) - CH(CH3)(C2H5)
a. 3,4-dimethylhexane
b. 3,4-dimethylhexene
c. 2,3-diethylbutane
d. 2-ethyl-3-methylpentane
e. 4-ethyl-3-methylpentane

22. Which is 3-ethyl-2-methylpentane?
a. CH(CH3)-CH(C2H5)2
b. C(CH3)3-CH(C2H5)2
c. CH(CH3)2-CH(C2H5)2
d. CH(CH3)2-CH(CH3)4
e. CH(CH3)2-CH(CH3)(C3H7)

23. The name of CH3CH2CHClCH3 is ….
a. chlorobutane
b. 1-chlorobutane
c. 2-chlorobutane
d. 3-chlorobutane
e. chloro-2-butane

24. The name of this compound is ….
       C6H5CH3
a. methylhexane
b. methylbenzene
c. hexylmethane
d. 1-methylcyclohexane
e. Methylcyclohexane
25. The following compound is named ….
      C6H4Cl2
a. 1,4-dichlorocyclohexane
b. 2,5-dichlorocyclohexane
c. p-dichlorobenzene
d. dichlorocyclohexane
e. 1,4-dichlorobenzene

26. Unsaturated organic compounds contain at least one double or triple bond. These can be shown as ....
a. – C – C – and – C = C –
b. – C – C – and – C ≡ C –
c. – C ≡ C – and – C = C –
d. – C – C – and – C = C = C –
e. – C – C – and – C ≡C = C –

27. Which one of the following hydrocarbons is classified as unsaturated?
a. C2H4
b. C3H8
c. C4H10
d. C6H14
e. C10H22

28. A functional group ....
1. is where chemical reactions occur in an organic molecule
2. determine the family name of the compound
3. is a specific atom or group of atoms
a. 1 only
b. 2 only
c. 3 only
d. 1 and 2
e. 1, 2, and 3

29. The functional group in alkenes is ….
a. a benzene ring
b. an alkene ring
c. a carbon-carbon double bond
d. a carbon-carbon single bond
e. a carbon-carbon triple bond

30. What is the IUPAC name of the molecule whose carbon skeleton is shown below?
C - C - C = C - C
a. 3 – pentane
b. 3–pentene
c. 2 – pentene
d. 2 – pentyne
e. 3 – pentyne

31. The following compounds are alkenes, except ….
a. CH2C(CH3)CH(CH3)2
b. CH3(CH)2CH3
c. C(CH3)3C(CH3)CH2
d. C2H5(CH)2CH3
e. C(CH3)4

32. The homolog series of alkenes are ….
a. C6H10 – C2H2
b. C3H6 – C4H6
c. C4H10 – C3H8
d. C5H8 – C5H12
e. C5H10 – C7H14

33. From the following formulas, 3-methyl-1-butene is ….
a. CH2CHCH3
b. CH2CHCH2CH3
c. CH3C(CH3)CH2
d. CH3CHCHCH3
e. CH3CH(CH3)CHCH2

34. The name of CH2=CHCH(CH3)CH3 is ….
a. 2-2 dimethyl-1-propene
b. 2-methyl-3-butene
c. 2-methyl-2-butene
d. 3-methyl-1-butene
e. 3-methyl-2-butene

35. A compound has two double bonds. This can be classified as ….
a. 2-alkene
b. dialkene
c. double alkene
d. alkadiene
e. alkyne

36. The name of CH2 = C = C(CH3)2 is ….
a. 1-methyl-1,2-butadiene
b. 2-methyl-1,2-butadiene
c. 2-methyl-2,3-butadiene
d. 3-methyl-2,3-butadiene
e. 3-methyl-1,2-butadiene

37. What is best name for the molecule below?
CHCCH(CH3)2
a. 3-methyl-2-butyne
b. 3-methyl-2-butene
c. 3,3-dimethyl-1-propyne
d. 1,1-dimethyl-2-propyne
e. none of the above

38. The possible name of (CH3)2CHCH2C ≡ CH is ....
a. methylpentyne
b. 1-methyl-1-pentyne
c. 4-methyl-1-pentyne
d. 1-methyl-4-pentyne
e. 4-methyl-4-pentyne

39. One of the following compounds which has the same number of carbon and hydrogen atoms with heptyne is …
a. 2-methyl-1-hexyne
b. 4-methyl-1-hexyne
c. 4-methyl-4-hexyne
d. 1,2-dimethyl-1-pentyne
e. 2,3-dimethyl-2-pentyne

40. The possible name of a cycloalkene which contains 5 carbon atoms is ….
a. methylcyclobutene
b. 1-methyl-1-cyclobutene
c. 1-methylcyclobutene
d. methyl-1-cyclobutene
e. 2-methylcyclobutene