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Suggest reasons why the B–F bond lengths in (130 pm) and (143 pm) differ? |
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Answer» ntral atom “B” in undergoes hybridization. Therefore, the shape of the molecule is planar. It has vacant 2p orbital and also F atom has three LONE pair of electrons. In bond is formed by overlapping of the empty orbital of boron atoms and one 2p - orbital of fluorine. In, the central atom boron undergoes hybridization. Therefore, it is a tetrahedral molecule.In, they do not have vacant orbital to ACCEPTS the electrons from the fluorine atoms.And it have pure single bond.Hence double bonds are SHORTER than single bonds, therefore, B -F bond LENGTH in is shorter (130 pm) than B-F bond length (143 pm) in ." |
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