Melting point of water is higher than petrol, because intermolecular forces in water are:
Correct answer: B. Stronger than petrol
- A. Weaker than petrol
- B. Stronger than petrol
- C. Same as in petrol
- D. Negligible
Explanation
Melting and boiling points depend on the intermolecular strengths of a molecule, higher the boiling and melting point stronger the intermolecular forces. Hence melting point of water is higher than petrol because water has stronger intermolecular forces than petrol.
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About Hydrogen Bonding
Hydrogen bonding is the strong attraction between hydrogen attached to nitrogen, oxygen or fluorine and an electronegative atom in the same or another molecule. It explains unusual boiling points, viscosity, surface tension, water's properties and the difference between intermolecular and intramolecular hydrogen bonding.
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