alleryWhich property of water is due to hydrogen bonding?
AIt is a gas at room temperature
BIts unusually high boiling point
CIt is colourless
DIt does not dissolve salt
Answer & Solution
Correct answer: B. Its unusually high boiling point
1. Most molecules of similar mass (e.g. H2S) are gases at room temperature.
2. Water needs much more energy to boil due to hydrogen bonds.
3. Each molecule pulls on several neighbours via H-bonds.
4. So water has an unusually high boiling point of 100 C.
5. Hydrogen bonding also explains ice density anomaly and high heat of vaporisation.
_Source: Selina Concise Chemistry ICSE Class 10, Ch 2 'Chemical Bonding'_
Keep practising Periodic Table & Periodic Properties
Browse all Periodic Table & Periodic Properties questions for Andhra Pradesh SSC (Class 10), or explore more Chemistry topics.
Related questions
In an electrovalent (ionic) compound MgCl2, magnesium and chlorine ions exist as:Which is the BEST example of a metallic bond?Why are giant covalent crystals (like diamond) very hard?Which molecule features hydrogen bonding?CO2 has polar bonds yet is non-polar overall because:The shape of an ammonia (NH3) molecule is:Why is the structure of methane tetrahedral?Which compound contains BOTH ionic and covalent bonds?