Lewis acids & bases questions

1. Boron trifluoride, BF3, can react with potassium fluoride to form the salt potassium tetrafluoroborate, KBF4.Explain why this can be considered an acid-base reaction and deduce the shapes of both boron trifluoride and the tetrafluoroborate ion and the F―B―F bond angles in each case.2. Aluminium chloride, AlCl3, can act as a halogen carrier in organic chemistry, for example, benzene reacts with chlorine in the...

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