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Muhammad Sohail Sabir

How is FeCl3 a Lewis acid?

Dewan Nirjhor  Follow

Lewis acid/base theory…..

Lewis acid … electron pair acceptor
Lewis base .. electron pair donor

Iron(III) chloride is soluble in water, and ionizes to form Fe^3+ ions and chloride ions. Iron (III) ion, with only five electrons in the 3d, can accept additional electrons, making it a Lewis acid.

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Alexandre Courvoisier  Follow

Lewis acid is a substance which can accept pair of electrons from another substance.

Here, BCl3 is stronger Lewis acid than BF3.

Electronic configuration of B : 1s2 2s2 2p1

And hybridized as

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