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Slect the chain propagation steps in the...

Slect the chain propagation steps in the free-radical chlorination of methane.
1. `Cl_(2) rarr 2Cl^(*)`
2. `Cl^(*) + CH_(4) rarr CH_(3)Cl + H^(*)`
3. `Cl^(*) + CH_(4) rarr CH_(3)^(*) + HCl`
4. `H^(*) + Cl_(2) rarr HCl + Cl^(*)`
5. `CH_(3)^(*) + Cl_(2) rarr CH_(3)Cl + Cl^(*)`

A

2, 3, 5

B

1, 3, 6

C

3, 5

D

2, 3, 4

Text Solution

Verified by Experts

The correct Answer is:
C
Mechanism for the monochlorination of methane

Any two radicals in the reaction mixture can combine to form a molecule in which all the electrons are paired. The combination of two radicals is called a termination step because it brings the reaction to an ends by decreasing the number of radicals available to propagate the reaction.
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