Question

List the following five compounds, ethanamide, 1-propanol, methyl formate, acetic acid, and propanenitrile, in order of decreasing boiling point. Start with the highest boiling compound.

Rank the following compounds from compound with highest boiling point to compound with lowest boiling point. To rank items as equivalent, overlap them.

List the following five compounds, ethanamide, 1-propanol, methyl formate, acetic acid, and propanenitrile, in order of decreasing boiling point. Start with the highest boiling compound Rank the following compounds from compound with highest boiling point to compound with lowest boiling point. To rank items as equivalent, overlap them Reset Help Highest Lowest propanenitrile acetic acid methyl formate 1-propanol ethanamide

Answer 1

Highest : ethanamide > acetic acid > 1-propanol = propanenitrile > methyl formate : Lowest

Explanation

Amides have much higher boiling points than corresponding carboxylic acids because in amides, the nitrogen atom has 2 hydrogen atoms which contribute to hydrogen bonding whereas in carboxylic acids there is only one hydrogen atom which contribute to hydrogen bonding. Hence, intermolecular forces are stronger in amides which require higher energy to break which leads to higher boiling point.

Answer 2

CORRECT ORDER IS ethanamide > acetic acid > 1-propanol = propanenitrile > methyl formate