MCQ
$BF_3$ and $NF_3$ both are covalent compounds but $NF_3$ is polar whereas $BF_3$ is non-polar. This is because
- ANitrogen atom is smaller than boron atom
- B$N -F$ bond is more polar than $B -F$ bond
- ✓$NF_3$ is pyramidal whereas $BF_3$ is planar triangular
- D$BF_3$ is electron deficient whereas $NF_3$ is not
