Hydrocarbons MCQs | Question – Paper 4

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Topic: Hydrocarbons, Test No.: 04, Total MCQs: 10

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Question 1
A petroleum fraction having boiling range 70 - 200°C and containing 6 - 10 carbon atoms per molecule is called
A
natural gas
B
gas oil
C
gasoline
D
kerosene
Question 2
Addition of HBr to propylene in presence of benzoyl peroxide, follows :
A
Carbanion mechanism
B
Baeyer's rule
C
Markownikoff's rule
D
Anti-Markownikoff's rule
Question 3
Aqueous solution of an organic compound, 'A' on electrolysis liberates acetylene and CO2 at anode. 'A' is
A
potassium citrate
B
potassium succinate
C
potassium acetate
D
potassium maleate
Question 4
Cetane is a compound which has very good ignition property. Chemically it is
A
C17H34
B
(CH3)3C(CH2)11CH3
C
CH3(CH2)14CH3
D
None of these
Question 5
Compound which gives acetone on ozonolysis :
A
C6H5CH = CH2
B
(CH3)2C = C(CH3)2
C
CH3 — CH = CH — CH3
D
CH3CH = CH2
Question 6
Correct statement about 1, 3-dibutene :
A
forms polymer
B
reacts with HBr
C
conjugated double bonds are present
D
all of the above
Question 7
Nitrobenzene on reaction with conc. HNO3/H2SO4 at 80 – 100°C forms which one of the following products?
A
1, 2-Dinitrobenzene
B
1, 3-Dinitrobenzene
C
1, 4-Dinitrobenzene
D
1, 2, 4-Trinitrobenzene
Question 8
Petrol for aviation purpose must contain
A
straight chain hydrocarbons
B
olefinic hydrocarbons
C
aromatic hydrocarbons
D
highly branched chain hydrocarbons
Question 9
Propyne and propene can be distinguished by :
A
alk. KMnO4
B
Br2 in CCl4
C
conc. H2SO4
D
AgNO3 in NH3
Question 10
Pure methane can be produced by
A
Soda lime decarboxylation
B
Kolbe's electrolytic method
C
Wurtz reaction
D
Reduction with H2
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