✅ Hydrocarbon properties:A. Nonpolar: True. Hydrocarbons are nonpolar because they are made mostly of C–H bonds.B. Boiling point: True. All substances have a boiling point (though hydrocarbons usually have low-to-moderate boiling points compared to ionic compounds).C. Have high density: NOT true. Hydrocarbons have low density (that’s why oil floats on water).D. Poor conductor of electricity: True. Hydrocarbons do not conduct electricity because they have no free ions or electrons.✅ Answer:✅ C. Have high densityThis is NOT a property of hydrocarbons.