WorksheetsFree Radical Substitution
Total questions: 11
Worksheet time: 11mins
A free radical has
unpaired electrons
paired electrons
no electrons
even number of electrons
Which radical is the most stable?
Single headed arrow show....
attack or movement of an unpaired electron
attack or movement of an electron pair
attack or movemant of a lone pair
attack or movemant of an electron pair and unpaired electron
Which of the following is a free radical substitution reaction?
Hydrolysis of alkanes
Halogenation of alkanes
Hydrogenation of alkanes
Combustion of alkanes
How many steps of mechanism for Free Radical Substitution Reaction of Alkane.
1
2
3
4
State the function of UV light for the above reaction.
To provide energy for heterolytic cleavage to occur in bromine molecule.
To provide energy for homolytic cleavage to occur in bromine molecule.
To provide energy for heterolytic cleavage to occur in propane molecule.
Which step produces two highly reactive chlorine free radicals.
Propagation Step
Termination Step
Initiation Step
Elimination Step
What is the name of step for the mechanism above.
Elimination Step
Initiation step
Termination step
Propagation step
Which of the step is the propagation step?
Which equation represents a termination step?
Pick the CORRECT statement for the chlorination of alkane.
The chain initiation step involves the attack of chlorine radicals on alkane.
Sunlight supplies energy for the breaking of C-H bonds in methane.
Chlorine radicals are produced by light catalysed fission.
Chlorine radicals are generated again in the termination step.
