Which one of the following arrangements of mo | vedclass

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

Question

(D) The dipole moment of a molecule depends on its geometry and the polarity of its bonds.$BF_3$ has a trigonal planar geometry,and the bond dipoles c

Vedclass · Accepted Answer

$NH_3 > NF_3 > BF_3$

Vedclass · Answer

(D) The dipole moment of a molecule depends on its geometry and the polarity of its bonds.$BF_3$ has a trigonal planar geometry,and the bond dipoles cancel each other out,resulting in a net dipole moment of $0 \ D$.$NH_3$ has a pyramidal geometry with a lone pair on the $N$ atom. The bond dipoles of $N-H$ bonds and the lone pair dipole point in the same direction,resulting in a high dipole moment of approximately $1.47 \ D$.$NF_3$ also has a pyramidal geometry,but the $N-F$ bond dipoles point in the opposite direction to the lone pair dipole,which partially cancels the net dipole moment,resulting in a value of approximately $0.24 \ D$.Therefore,the correct order of dipole moments is $NH_3 > NF_3 > BF_3$.

Which one of the following arrangements of molecules is correct on the basis of their dipole moments?

Similar Questions

If the dipole moment of $Images-1$ is $1.5 \ D$,then the dipole moment of $Images-2$ will be .................. $D$.

Which of the following has the highest dipole moment?

The molecular size of $ICl$ and $Br_2$ is approximately the same,but the $b.p.$ of $ICl$ is about $40 \ ^oC$ higher than that of $Br_2$. This is because:

Among the following mixtures,dipole-dipole as the major interaction is present in

Which of the following molecules is more polar?

Vedclass Test Series

Exam Paper Generator

Online Exam Module