Which of the following molecules has a dipole | vedclass

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

Question

(C) The dipole moment $(\mu)$ of a molecule is zero if it has a symmetric geometry where the bond dipoles cancel each other out.
$BH_3$ and $AlH_3$ h

Vedclass · Accepted Answer

$BH_3$

Vedclass · Answer

(C) The dipole moment $(\mu)$ of a molecule is zero if it has a symmetric geometry where the bond dipoles cancel each other out.
$BH_3$ and $AlH_3$ have a trigonal planar geometry ($sp^2$ hybridization),which is symmetric,resulting in a net dipole moment of $\mu = 0$.
$NH_3$ and $PH_3$ have a trigonal pyramidal geometry with a lone pair on the central atom,which is asymmetric,resulting in a non-zero dipole moment $(\mu 
eq 0)$.
Therefore,both $BH_3$ and $AlH_3$ have a dipole moment of zero. Given the options,$BH_3$ is the standard answer.

Which of the following molecules has a dipole moment of zero: $NH_3, PH_3, BH_3, AlH_3$?

Similar Questions

If the dipole moment of chlorobenzene is $\mu$,what is the dipole moment of $1,3,5$-trichlorobenzene?

Which of the following molecules will have polar bonds but zero dipole moment?

Number of compounds from the following with zero dipole moment is . . . . . .
$HF, H_2, H_2S, CO_2, NH_3, BF_3, CH_4, CHCl_3, SiF_4, H_2O, BeF_2$

Which one is a polar molecule?

Why is the water molecule polar?

Vedclass Test Series

Exam Paper Generator

Online Exam Module