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Question
Among the following halogens the one with highest bond energy is:
Among the following halogens the one with highest bond energy is:
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Solution
The correct option is A Cl2
In fluorine there is greater lone pair-lone pair repulsion due to its very small size. So Cl-Cl bond is stronger than F-F bond. However the bond energy decreases with increase in atomic size in case of bromine and iodine.
Cl2
In fluorine there is greater lone pair-lone pair repulsion due to its very small size. So Cl-Cl bond is stronger than F-F bond. However the bond energy decreases with increase in atomic size in case of bromine and iodine.
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