Which of the following statement(s) is/are true about relative density?
Statement 1: Relative density is known as the specific gravity of the substance.
Statement 2: Relative density of a substance is the ratio of the density of the substance to the density of water at 4∘C.
Statement 3: Relative density of a substance is the ratio of the mass of water at 4∘C to the mass of a substance at 4∘C.
Statement 4: Relative density is unitless.
Statement 4
The relative density of a substance is defined as the ratio of the density of the substance to the density of water at 4∘C. Relative density is also known as the specific gravity of the substance. The relative density of a substance can also be defined as the ratio of the mass of a substance to the mass of the water if the volume of water at 4∘C and volume of substance is same. Since relative density is the ratio of two densities, thus it has no unit.