Question

Give reasons

Mgcl2 is soluble in water but insoluble in acetone, while methane is insoluble in water,but soluble in acetone.

Answer 1

mgcl2 is a mixture of water and magnesium and methane gas which absorbs by the acetone

Answer 2

Here is your answer
Mgcl2 is an ionic compound which can dissolve in water as a high dielectric constant force due to which it weakens the attraction between the ions. For ex sodium chloride also has dielectric constant due to which it can soluble.

Methane is a covalent compound which is generally insoluble however some of the compound like glucose sugar urea is soluble in water .