Assertion : `PF_(3)` behaves as a lewis acid.
Reason: `PF_(3)` has a pyramidal structure .

Options

A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is false
C. A is true but R is false
D. A is false but R is true

Answer

B

Explanation

Reasonn : It is due to electron withdrawing effect of F which make the central atom (P) electron deficient and it accept a lone pair of electrons in a vacant d-orbitals of the valence shell.