In which of the following the central atom does not usesp^(3) - hydrid orbitals in its bonding.

In which of the following the central atom does not usesp^(3) - hydrid

1.	In which of the following the central atom does not usesp^(3) - hydrid orbitals in its bonding.
Answer» `BeF_(3)^(-)` `OH_(3)^(-)` `NH_(2)^(-)` `NH_(3)` Solution :` Be F_(3)^(-) = Be F_(2) + F^(-). Be F_(2)` INVOLVES sp HYBRIDISATION .