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WorksheetsSK025 Chapter 5: Hydrocarbon
Total questions: 10
Worksheet time: 5mins
Which of the following has the lowest boiling point?
A. C5H12
B. (CH3)2CHC2H5
C. (CH3)4C
D. cyclopentane
Which of the following is a saturated hydrocarbon?
A. C2H4
B. C5H8
C. C4H10
D. C6H12
Which of the following is a free radical substitution reaction?
A. Hydrolysis of alkanes
B. Halogenation of alkanes
C. Hydrogenation of alkanes
D. Combustion of alkanes
Pick the CORRECT statement for the chlorination of alkane.
A. The chain initiation step involves the attack of chlorine radicals on alkane
B. Sunlight supplies energy for the breaking of C-H bonds in methane
C. Chlorine radicals are produced by light catalysed fission
D. Chlorine radicals are generated again in the termination step
By using Saytzeff’s rule, the most stable alkene is
A. (C2H5)2C=CH2
B. CH2=CHC4H9
C. (CH3)2C=C(CH3)2
D. C2H5CH=CHC2H5
When ethene gas was passed through a hot potassium manganite (VII) solution, the product formed was
A. HCOCH3
B. CH3CH2OH
C. (CH2OH)2
D. CO2 and H2O
Alkene + W --> diol. W could be
A. Cold potassium manganite (VII) solution
B. Hot potassium manganite (VII) solution
C. Cold basic potassium manganite (VII) solution
D. Hot acidified potassium manganite (VII) solution
Both ethane and ethene can react with bromine. Choose the FALSE statement.
A. Ethane reacts by free radical substitution.
B. Ethene reacts by addition
C. Hydrogen bromide gas is released with ethane
D. Ethene can only react in the presence of light
When hydrogen bromide reacts with propene,
A. Light is needed as a catalyst
B. Br- acts as an electrophile
C. 2-bromopropane is formed
D. 1-bromopropane is formed
Pick the CORRECT statement
A. Rotation about a double bond is permitted.
B. Alkenes undergo substitution reaction.
C. Alkenes are used to manufacture polymers.
D. Alkenes can only exhibit structural isomerism.
