Vsepr & Hybridisation

Question

Which statement about hydrogen bonding is correct?

RankGuru · Accepted Answer

1. **Nature of H-Bonding**: It is a strong dipole-dipole attraction (not a formal covalent bond).
2. **Conditions**: 
   - Hydrogen must be covalently bonded to a small, **highly electronegative** atom (**F, O, or N**).
   - An electronegative atom (F, O, N) with a lone pair must be nearby.
3. **Why only F, O, N?**: Their high electronegativity creates a large partial positive charge on H, and their small size allows the atoms to get close enough for strong interaction.
4. **Effects**: Significantly raises **boiling points** (e.g., $H_2O$ vs $H_2S$) and increases solubility in polar solvents.
5. **Strength**: It is much weaker than covalent bonds but stronger than normal van der Waals forces.

Rank Guru

Vsepr & Hybridisation

Select the correct option:

Solution

🔒 Solution Hidden from View

More vsepr & hybridisation Practice Questions

Which statement best explains why PF5 is stable while NF5 is not?

Formal charge on oxygen in the nitrate ion (NO3−) using a structure with one double bond and two sin...

Which set lists increasing bond length for the carbon–oxygen bonds?

Which pair correctly matches molecule with geometry?

The approximate bond angle in NH3 is:

About This Question