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Acidity & BasicityMost Important Inorganic Trends

Lewis Acid Strength (Boron Halides): BF3<BCl3<BBr3<BI3BF_{3} < BCl_{3} < BBr_{3} < BI_{3}

Expert Answer

Back-bonding ( 2pπ−2pπ2p\pi-2p\pi ) is strongest in BF3BF_3 , reducing acidity.

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