Question 1

Which of the following fractions of petroleum refining contains kerosene ? (Boiling ranges in o C are given below)

Accepted Answer

A)  40 - 80
B)  80 - 200
C)  200 - 300
D)  Above 300E) A) and B)
F) A) and C)

Question 2

Octane number has 0 value for……….

Accepted Answer

A)  iso-octane
B)  n-hexane
C)  n-heptane
D)  iso-heptaneE) A) and D)
F) A) and C)

Question 3

A mixture of propene and methane is obtained by the cracking of…………..

Accepted Answer

A)  1-butene
B)  2-butene
C)  n-butane
D)  IsobutaneE) None of the above
F) All of the above

Question 4

Knocking sound occurs in engine when fuel……….

Accepted Answer

A)  Ignites slowly
B)  Ignites rapidly
C)  Contains water
D)  Is mixed with machine oilE) B) and C)
F) A) and D)

Question 5

The tetrahedral nature of carbon was first given by………….

Accepted Answer

A)  Kekule
B)  Le Bell and Van't Hoff
C)  Pauling
D)  Armstrong and BayerE) None of the above
F) C) and D)

Question 6

On mixing tetraethyl lead to gasoline available at petrol pumps…………..

Accepted Answer

A)  Calorific value of the fuel increases
B)  Odour diminishes
C)  Less smoke is obtained on combustion
D)  Antiknock property of fuel increasesE) A) and B)
F) C) and D)

Question 7

A liquid hydrocarbon can be converted to gaseous hydrocarbon by…………..

Accepted Answer

A)  Cracking
B)  Hydrolysis
C)  Oxidation
D)  Distillation under reduced pressureE) A) and B)
F) B) and D)

Question 8

In the process of cracking……………

Accepted Answer

A)  Organic compounds decompose into their constituent elements
B)  Hydrocarbons decompose into carbon and hydrogen
C)  High molecular weight organic compounds decompose to give low molecular weight organic compounds
D)  Hydrocarbons yield alkyl radicals and hydrogenE) All of the above
F) B) and C)

Question 9

Formation of alkane by the action of Zn on alkyl halide is called

Accepted Answer

A)  Frankland's reaction
B)  Wurtz reaction
C)  Cannizzaro reaction
D)  Kolbe's reactionE) B) and C)
F) A) and D)

Question 10

The natural petroleum contains………….

Accepted Answer

A)  Saturated hydrocarbons
B)  Cyclic saturated hydrocarbons
C)  Compounds of sulphur
D)  All of theseE) None of the above
F) All of the above

Question 11

The preparation of ethane by electrolysis of aqueous solution of potassium acetate is called as…….

Accepted Answer

A)  Wurtz reaction
B)  Sabatier-Senderen's reaction
C)  Kolbe's synthesis
D)  Grignard reactionE) C) and D)
F) All of the above

Question 12

As the number of carbon atoms in a chain increases the boiling point of alkanes……….

Accepted Answer

A)  Increases
B)  Decreases
C)  Remains same
D)  May increase or decreaseE) None of the above
F) C) and D)

Question 13

Dry distillation of sodium propanoate with sodalime gives …………..

Accepted Answer

A)  Propane
B)  Propene
C)  Ethane
D)  EtheneE) A) and D)
F) B) and C)

Question 14

A sample of gasoline contains 81% iso-octane and 19% nheptane. Its octane number will be……..

Accepted Answer

A)  19
B)  81
C)  100
D)  62E) B) and D)
F) A) and D) B

Question 15

Name the hydrocarbon that is a liquid at STP……….

Accepted Answer

A)  Ethane
B)  Propane
C)  n-butane
D)  n-pentaneE) A) and B)
F) A) and C) D

Question 16

Which of the following is not an endothermic reaction…………

Accepted Answer

A)  Dehydrogenation
B)  Ethane to ethene
C)  Combustion of propane
D)  Change of chlorine molecule into chlorine atomsE) A) and B)
F) A) and D)

Question 17

Gasoline is the name of ……………

Accepted Answer

A)  Crude oil
B)  The gaseous constituents of petroleum
C)  The mixture of uncondensed gases produced in the distillation of crude oil
D)  The mixture of the residue and gas oil obtained in the distillation of crude oilE) None of the above
F) A) and D)

Question 18

Which of the following compound has maximum boiling point……..

Accepted Answer

A)  n-hexane
B)  n-pentane
C)  2, 2-dimethyl propane
D)  2-methyl butaneE) B) and C)
F) A) and B) A

Question 19

Water gas is………..

Accepted Answer

A)  CO + CO2
B)  CO + N2
C)  CO + H2
D)  CO + N2 + H2E) A) and D)
F) B) and C)

Question 20

Aqueous solution of the following compound on electrolysis gives ethane……….

Accepted Answer

A)  Acetic acid
B)  Acetamide
C)  Potassium acetate
D)  Ethyl acetateE) A) and C)
F) C) and D)

Exam 3: Petroleum and Hydrocarbons

Which of the following fractions of petroleum refining contains kerosene ? (Boiling ranges in o C are given below)

Correct AnswerverifiedShow Answer

Octane number has 0 value for……….

Correct AnswerverifiedShow Answer

A mixture of propene and methane is obtained by the cracking of…………..

Correct AnswerverifiedShow Answer

Knocking sound occurs in engine when fuel……….

Correct AnswerverifiedShow Answer

The tetrahedral nature of carbon was first given by………….

Correct AnswerverifiedShow Answer

On mixing tetraethyl lead to gasoline available at petrol pumps…………..

Correct AnswerverifiedShow Answer

A liquid hydrocarbon can be converted to gaseous hydrocarbon by…………..

Correct AnswerverifiedShow Answer

In the process of cracking……………

Correct AnswerverifiedShow Answer

Formation of alkane by the action of Zn on alkyl halide is called

Correct AnswerverifiedShow Answer

The natural petroleum contains………….

Correct AnswerverifiedShow Answer

The preparation of ethane by electrolysis of aqueous solution of potassium acetate is called as…….

Correct AnswerverifiedShow Answer

As the number of carbon atoms in a chain increases the boiling point of alkanes……….

Correct AnswerverifiedShow Answer

Dry distillation of sodium propanoate with sodalime gives …………..

Correct AnswerverifiedShow Answer

A sample of gasoline contains 81% iso-octane and 19% nheptane. Its octane number will be……..

Correct AnswerverifiedB

Name the hydrocarbon that is a liquid at STP……….

Correct AnswerverifiedD

Which of the following is not an endothermic reaction…………

Correct AnswerverifiedShow Answer

Gasoline is the name of ……………

Correct AnswerverifiedShow Answer

Which of the following compound has maximum boiling point……..

Correct AnswerverifiedA

Water gas is………..

Correct AnswerverifiedShow Answer

Aqueous solution of the following compound on electrolysis gives ethane……….

Correct AnswerverifiedShow Answer

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B

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D

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A

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