Which molecule has the largest dipole moment?

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

Question

(D) The dipole moment $\mu$ is defined as the product of the magnitude of the charge $(q)$ and the distance of separation $(d)$ between the charges, i

Vedclass · Accepted Answer

$HF$

Vedclass · Answer

(D) The dipole moment $\mu$ is defined as the product of the magnitude of the charge $(q)$ and the distance of separation $(d)$ between the charges, i.e., $\mu = q 	imes d$. In the hydrogen halides $(HF, HCl, HBr, HI)$, the electronegativity of the halogen decreases as we move down the group $(F > Cl > Br > I)$. Consequently, the electronegativity difference between hydrogen and the halogen is highest for $HF$, leading to the largest partial charges $(q)$. Although the bond length $(d)$ increases from $HF$ to $HI$, the effect of the large electronegativity difference in $HF$ dominates, making $HF$ the most polar molecule with the largest dipole moment.

Similar Questions

$BF_3$ and $NF_3$ are both covalent compounds. However,$BF_3$ is non-polar,while $NF_3$ is polar because .....

State the magnitude of dipole-dipole forces and the value of interaction energy with examples.

The dipole moments of $CCl_{4}$,$CHCl_{3}$ and $CH_{4}$ are in the order:

If $B-Cl$ bond has a dipole moment,explain why $BCl_3$ molecule has zero dipole moment.

Show the dipole moment of $H_2O$ and $BeH_2$ with diagrams.

Vedclass Test Series

Exam Paper Generator

Online Exam Module