The correct order of dipole moments of NH_3,H | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The dipole moments are: $H_2O = 1.85 \ D$,$NH_3 = 1.47 \ D$,and $NF_3 = 0.24 \ D$. In $NH_3$,the dipole moments of the three $N-H$ bonds and the l

Vedclass · Accepted Answer

$H_2O > NH_3 > NF_3$

Vedclass · Answer

(A) The dipole moments are: $H_2O = 1.85 \ D$,$NH_3 = 1.47 \ D$,and $NF_3 = 0.24 \ D$. In $NH_3$,the dipole moments of the three $N-H$ bonds and the lone pair are in the same direction,resulting in a higher net dipole moment. In $NF_3$,the dipole moments of the three $N-F$ bonds are in the opposite direction to the lone pair,which partially cancels out the net dipole moment. $H_2O$ has a higher dipole moment than $NH_3$ due to the higher electronegativity difference between $O$ and $H$ compared to $N$ and $H$,and the presence of two lone pairs. Thus,the correct order is $H_2O > NH_3 > NF_3$.

The correct order of dipole moments of $NH_3$,$H_2O$ and $NF_3$ is

Similar Questions

Which of the following compounds is polar?

If the bond length and dipole moment of a diatomic molecule are $1.25 \ \mathring{A}$ and $1.0 \ D$ respectively,what is the percent ionic character of the bond?

$BF_3$ and $NF_3$ are both covalent molecules,but $BF_3$ is non-polar and $NF_3$ is polar. The reason for this is:

Which of the following exhibits a dipole moment?

Which of the following will have the maximum dipole moment?

Vedclass Test Series

Exam Paper Generator

Online Exam Module