Final answer:
Ethers differ from alcohols by lacking a hydrogen atom bonded to the oxygen atom, which means ethers contain no OH group.
Step-by-step explanation:
The only chemical difference between ether and alcohol is that ether contains no hydrogen atom on the oxygen atom, which means no OH group is present. Unlike alcohols, ethers do not exhibit intermolecular hydrogen bonding and hence have lower boiling points compared to alcohols of comparable molar mass. In ethers, the oxygen atom is connected to two alkyl or aryl groups, while in alcohols, the oxygen atom is part of a hydroxyl group (-OH) attached to a carbon chain.