2-propanol and isopropanol are actually the same compound, with isopropanol being the more common name. They are both alcohols with the chemical formula C3H8O. Isopropanol is commonly used as a solvent, disinfectant, and in personal care products. It has a wide range of applications in industries such as pharmaceuticals, cosmetics, and cleaning products.
It is soluble in water, as would be expected (the molecule has a dipole moment), so I would guess that it would be poorly soluble in nonpolar solvents such as hexane or carbon tetrachloride. This is just a guess though...
Propene is an alkene, whereas propane is an alkane. Thus, propene is an unsaturated molecule, having a carbon-carbon double bond. If you add bromine water, an aqueous solution of bromine, to the test tubes, you can tell which is propene, the alkene. The bromine reacts with and saturates the double bonds in alkenes, and so decolourises. The bromine does not decolourise when added to an alkane as it does not react. So, in conclusion:Add bromine water (brown) to the test tubesIf the bromine water stays brown, the test tube contains propaneIf the bromine water goes colourless, the test tube contained propene.