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Covalent Character

6. The bond e...

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6. The bond energy of B F bond in BF3 is 646 kJ/mol, while bond energy of N F bond in NF3 is 280 kJ/mol. This is because (1) N is more electronegative than B (2) Atomic mass of N is more than B (3) B F bond gets partial double bond character due to pp bond (4) N has a lone pair of electron while B does not

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Δ H (r e a c t i o n) = \sum

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- \sum

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Covalent Character

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