Question

Which of the following is non polar :-
(1) NF3
(2) BF3
(3) PF3
(4) SF4​

Answer 1

NF3 and BF3 both are covalent , but BF3 is non-polar, while NF3 is polar because : boron is non-metal in free state , while N2 is gas. there is no dipole moment in B-F bond while N-F bond have some dipole moment.

Answer 2

Answer:

$C{{O}_{2}}$ Is a linear symmetrical structure, hence the summation of all the vectors is zero. So this molecule is nonpolar. So, the correct answer is “Option B”.