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Question

According to Coulson the high reactivity of fluorine than other halogens is because of its:

A
high electronegativity
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B
lesser internuclear repulsions
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C
greater repulsions between non bonding electrons
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D
All the above
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Solution

The correct option is D greater repulsions between non bonding electrons
According to Coulson, since fluorine atoms are small it's intermolecular repulsion is appreciable. The large electron-electron repulsion between the lone pairs of electrons on the fluorine atom weakens the bond.

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