Question

sound's speed in methanol is less than sound's speed in hydrogen. therefore hydrogen's density is more than methanol's density.

so, will methanol float in a hydrogen filled room?(objects of lesser density float on objects having higher density even though its molecular weight is moreeg. oil floats on water

Answer 1

It is true that the speed of sound in methanol is less than the speed of sound in hydrogen but the density of hydrogen is less than that of methanol. An object with less density will float in the object of higher density.