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  4. Decreasing order of boiling points among ethanol, butan-1-ol, butan-2-ol and methanol is

Q. Decreasing order of boiling points among ethanol, butan-1-ol, butan-2-ol and methanol is

 1814  279 Alcohols Phenols and Ethers Report Error

Solution:

In alcohols, the boiling points increase with increase in the number of carbon atoms due to increase in van der Waals forces. On the other hand it decreases with increase in branching because of decrease in van der Waals forces with decrease in surface area.