Question

Why methane is insoluble in water?

Answer 1

Methane is a gas, and so its molecules are already separate - the water doesn't need to pull them apart from one another. The problem is the hydrogen bonds between the water molecules. If methane were to dissolve, it would have to force its way between water molecules and so break hydrogen bonds. That costs a reasonable amount of energy.

The only attractions possible between methane and water molecules are the much weaker van der Waals forces - and not much energy is released when these are set up. It simply isn't energetically profitable for the methane and water to mix.

Answer 2

hii the answer is..,
because of hydrogen bonding ...methane not bond with hydrogen..so it is insoluble in water ...
hope it help u

thnx dear☆☆☆☆☆