1.

Arrange the following compounds in increasing orderr of boiling point. Propan-1-ol, butan-1-ol, butan-2-ol, pentan-1-ol

Answer»

Propan-1-ol, butan-2-ol, butan-1-ol, pentan-1-ol
Propan-1-ol, butan-1-ol, butan-2-ol, pentan-1-ol
Pentan-1-ol, butan-2-ol, butan-1-ol, propan-1-ol
Pentan-1-ol, butan-1-ol, butan-2-ol, propan-1-ol.

Solution :The boiling points increase as the molecular mass o the alcohol increases. Further, among ISOMERIC alcohols, `1^(@)` alcohols have higher boiling points than `2^(@)` alcohols. In the LIGHT of these facts, the b.ps increase in the order propan-1-olltbutan-2-olltbutan-1-olltpentan-1-ol, therefore, option (a) is correct.


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