Planar structure is shown by

Options

A. `CO_(3)^(2-)`
B. `BCl_(3)`
C. `N(SiH_(3))_(3)`
D. All of these

Answer

D

Explanation

C in `CO_(3)^(2-)` and B in `BCl_(3)` are `sp^(2)` hybridised thus acquire planar geometry. Although N in `N(SiH_(3))_(3)` is `sp^(3)` hybridised but the steric hinderence caused by three bulky groups make it planar for higher stability.