Question
At room temperature hydrogen fluoride is a liquid while all other hydrogen halides are gases.
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Answer
- Fluorine has the highest electronegativity compared to remaining halogens.
- H-F bond has the highest bond polarity compared to other halides.
- The presence of strong intermolecular hydrogen bonding leads to the association of HF molecules as follows :
- Other hydrogen halides do not show hydrogen bonding due to their larger atomic size and less electronegativity.
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