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Which of the following has the highest b...

Which of the following has the highest bond energy?

A

Fluorine

B

Bromine

C

Iodine

D

Chlorine.

Text Solution

Verified by Experts

The correct Answer is:
D
Bond energy of Fluorine (although `F_2` has smallest bond length) is less than `Cl_2 and Br_2` due to greater interelectronic repulsions between the lone pair of electrons on `F` atom
`{:("Halogen",F-F, Cl-Cl, Br-Br,I-I),("Bond dissociation energy (kcal/mol)",38,57,45.5,35.5):}`
So chlorine has highest bond energy.
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