Which of the following compounds would have the lowest boiling point?
1-hydroxypropane |
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1-hydroxyethane |
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ethoxyethane |
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2-hydroxypropane |
Ethers have lower boiling points when compared to alcohols. In the given compounds ethoxyethane (diethyl ether) is ether and it has lowest boiling point (35 ºC) when compared to other compounds. Alcohols have higher boiling points due to the presence of hydrogen bonding between them.
1-hydroxypropane (propanol): boiling point: 97 ºC
1-hydroxyethane (ethanol): boiling point: 78 ºC
ethoxyethane (diethyl ether): boiling point: 35 ºC
2-hydroxypropane (isopropanol): boiling point: 83 ºC
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