Question

In which molecule are all atoms coplanar.

• A. $O_{2}^{+}$
• B. $BF_{3}$
• C. $PF_{3}$
• D. $NH_{3}$

Answer 1

Answer: (B)

$BF_{3}$

Answer 2

In $BF_{3}$ molecule Boron is $sp^{2}$hybridised so its all atoms are co-planar.