NCERT Class XII Chemistry
Chapter - Alcohols, Phenols and Ethers
Questions with Solutions

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Question : 22
Total: 45
Give reason for the higher boiling point of ethanol in comparison to methoxymethane.
Solution:  
The higher boiling point of ethanol may be attributed to the presence of intermolecular hydrogen bonding in it.
Due to such extensive bonding, more energy needs to be supplied to ethanol to break these bonds and move it into the vapour phase.
Methoxymethane, an ether, lacks such hydrogen bonding and is therefore a low boiling liquid.
CH3OCH3
Methoxymethane
(lacks H- bonding between molecules)
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