[" The formation of "PH_(4)^(+)" is difficult compared to "NH_(4)^(+)],[" because: "]

The formation of PH_(4)^(+) is diffficult compaired to NH_(4)^(+) because:

The formation of PH_(4)^(+) is diffficult compaired to NH_(4)^(+) because:

Assertion : Formation of PH_(4)^(+) ion is relatively difficult in comparison to NH_(4)^(+) ion. Reason : Lone pair of phosphorus atom in PH_(3) resides in stereochemically inactive pure s-orbital.

Assertion : Formation of PH_(4)^(+) ion is relatively difficult in comparison to NH_(4)^(+) ion. Reason : Lone pair of phosphorus atom in PH_(3) resides in stereochemically inactive pure s-orbital.