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Which of the of the following fluoro -co...

Which of the of the following fluoro -compouds is most likely to beahve as a Lewis base?

A

`BF_(3)`

B

`PF_(3)`

C

`CF_(4)`

D

`SiF_(4)`

Text Solution

Verified by Experts

The correct Answer is:
B
`BF_(3)` is a Lewis acid (incomplete octet), `PF_(3)` is a Lewis base (presence of lone pair on P atom), `CF_(4)` is neutral (complete octet) and `SiF_(4)` is a Lewis acid (presence of empty d-orbital on Si atom).
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