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  • Which of the following halogen is the most reactive and the least selective in free radical substitution of Alkanes?Option: 1 Fluorine

Which of the following halogen is the most reactive and the least selective in free radical substitution of Alkanes?

Option: 1

Fluorine


Option: 2

Chlorine


Option: 3

Bromine


Option: 4

Iodine


Answers (1)

best_answer

Fluorine molecule has a lesser bond energy than chlorine or bromine.

Also, the atomic size of flourine is the smallest among the halogens and hence, the fluorine radical obtained will be the most reactive among the halogen radicals.

So, fluorination is the most reactive and least selective reaction in the free radical substitution of Alkanes.

Hence, the correct answer is Option (1).

Posted by

Gaurav

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