. Is PCl3 a Lewis acid or Lewis base

Chemistry
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. Is PCl3 a Lewis acid or Lewis base?

Please explain why 

May 19th, 2015

Base because

PCl3 reacts rapidly and exothermically with water to form phosphorous acid, H3PO3 and HCl: PCl3 + 3 H2O → H3PO3 + 3 HCl
Phosphorus trichloride has a lone pair, and therefore can act as a Lewis base.
For example with the Lewis acids BBr3 it forms a 1:1 adduct, Br3B−−+PCl3.

May 19th, 2015

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May 19th, 2015
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