Planar structure is shown by

Options

(a) CO₃²⁻
(b) BCl₃
(c) N(SiH₃)₃
(d) All of these

Correct Answer:

All of these

Explanation:

C in CO₃²⁻ and B in BCl₃ are sp²-hybridised thus acquire planar geometry. Although N in N(SiH₃)₃ is sp³-hybridised but the steric hindrance caused by three bulky groups make it planar for higher stability.