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Question

Fluorine does not form any polyhalide as other halogens because:

A
it has maximum ionic character
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B
it has low FF bond energy (38.5 kcal mol1)
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C
of the absence of d-orbitals in the valence shell of fluorine
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D
it brings about maximum coordination number in other elements
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Solution

The correct option is C of the absence of d-orbitals in the valence shell of fluorine
Due to the absence of d-orbital, F can not expand its valency and does not form polyhalide like Br and I. Example: (IF7)

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