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Higher Alkynes from Alkynes

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Question

What are the steps involved in halogenation of alkanes?

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Solution

The steps involved in halogenation of alkanes-
1. Initiation
2. Propagation
3. Termination

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Similar questions

Q. What is halogenation of alkane?

Q. Halogenation takes place by free-radical mechanism. The values of

E

for chain initiation and chain propagation steps and enthalpy of overall reaction of halogens with alkane are given. Match the values with the type of halogens.

Q. The reactivity order of halogenation of alkanes is

F_{2} > C l_{2} > B r_{2} > I_{2}

. Choose the correct statements.
(I) Lower the activation energy for the chain initiation step, more reactive is the halogen.
(II) Lower the activation energy for the first chain-propagation step, more reactive is the halogen.
(III) Lower the activation energy for the second chain-propagation step, more reactive is the halogen.
(IV) More negative is the overall heat of the reaction (

Δ H_{r}^{o}

of the halogenation of alkane) more reactive is the halogen.

Q. The alkyl halide that can be made by free radical halogenation of alkanes are

Q. The halogen which is most reactive in the halogenation of alkanes under sunlight is:

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