The formation of PH4
+ is difficult compared to
NH4
+ because
(1) Lone pair of P is optically inert
(2) Lone pair of P resides in almost pure p orbitals
(3) Lone pair of P resides at sp3 orbital
(4) Lone pair of P resides in almost pure s orbitals
Dear Pranjal Kamra,
option d is the correct answer. Lone pair of P resides in almost pure s orbital.
PH3 + H+ ------- > PH4 +
As per Drago's rule, lone pair electron of P lies with s orbital and its non directional. So the overlapping nature is less as compare to ammonium ion in which the electron lies with hybrid orbital, and are directional.
option d is the correct answer. Lone pair of P resides in almost pure s orbital.
PH3 + H+ ------- > PH4 +
As per Drago's rule, lone pair electron of P lies with s orbital and its non directional. So the overlapping nature is less as compare to ammonium ion in which the electron lies with hybrid orbital, and are directional.