Question

Alkyl halides are polar and immiscible with water, explain.

Answer 1

Energy is required to overcome the attractions between the haloalkane molecules and to break the hydrogen bonds between water molecules. The energy released during the formation of new attractive force between Haloalkane and the water molecule is very less as the attractions between the haloalkane and the water molecule is not as strong as the original hydrogen bonds in water. Thus Alkyl halides, though polar, are immiscible with water.