1.

Which of the foll is not a Lewis acid ..... a) BF3b)AlCl3 c)FeCl3d)PH3​

Answer»

Answer:

d)PH3 is a base not a lewis acid!

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CHEERS!

explain...for BF3..

A Lewis acid can accept a pair of electrons from a Lewis base. The BORON in BF3 is ELECTRON poor and has an empty ORBITAL, so it can accept a pair of electrons, MAKING it a Lewis acid. A Lewis acid is defined as an electron-pair acceptor. So for something to act as a Lewis acid, it NEEDS to want electrons.



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