The correct order of dipole moments for molecules $\mathrm{NH}_3, \mathrm{H}_2 \mathrm{~S}, \mathrm{CH}_4$…

The correct order of dipole moments for molecules $\mathrm{NH}_3, \mathrm{H}_2 \mathrm{~S}, \mathrm{CH}_4$ and $\mathrm{HF}$, is
  1. $\mathrm{NH}_3>\mathrm{HF}>\mathrm{CH}_4>\mathrm{H}_2 \mathrm{~S}$
  2. $\mathrm{HF}>\mathrm{NH}_3>\mathrm{H}_2 \mathrm{~S}>\mathrm{CH}_4$
  3. $\mathrm{CH}_4>\mathrm{H}_2 \mathrm{~S}>\mathrm{NH}_3>\mathrm{HF}$
  4. $\mathrm{H}_2 \mathrm{~S}>\mathrm{NH}_3>\mathrm{HF}>\mathrm{CH}_4$

Solution

Fluorine is the most electronegative element. $\mathrm{H}-\mathrm{F}$ bond has maximum bond polarity. Order of dipole moment is

Asked in: NEET 2023 (Manipur)

Practice more Chemical Bonding and Molecular Structure questions on Aicharya