Question
Question: Arrange the following compounds in increasing order of their dipole moment : HBr, H₂ S, NF₃ and CHCl...
Arrange the following compounds in increasing order of their dipole moment : HBr, H₂ S, NF₃ and CHCl₃

A
H₂S < HBr < NF₃ < CHCl₃
B
NF₃ < HBr < H₂ S < CHCl₃
C
HBr < H₂ S < NF₃ < CHCl₃
D
CHCl₃ < NF₃ < HBr < H₂ S
Answer
NF₃ < HBr < H₂ S < CHCl₃
Explanation
Solution
The dipole moments are approximately: NF₃ (≈0.23 D), HBr (≈0.79 D), H₂S (≈0.97 D), and CHCl₃ (≈1.04 D). Thus, the increasing order is NF₃ < HBr < H₂S < CHCl₃.
