Both are bicyclic aromatic solid compounds insoluble in water
The picrate test is used to distinguish between anthracene and naphthalene. When naphthalene is treated with picric acid, a yellow precipitate is formed due to the formation of naphthalene picrate. In contrast, when anthracene is treated with picric acid, an orange or red precipitate is formed due to the formation of anthracene picrate. This color difference can be used to differentiate between the two compounds.
The chemical formula for biphenyl is C12H10
Biphenyl is sparingly soluble in ethanol. While it may dissolve to a small extent, it is not highly soluble in ethanol due to the non-polar nature of biphenyl and the polar nature of ethanol.
4-acetyl biphenyl
A biphenyl is a substituted or otherwise altered version of the hydrocarbon C12H10, such as PCBs.
The melting point of biphenyl is approximately 70.2°C.
Sublimation can be used to separate naphthalene from chalk powder. Naphthalene sublimes at room temperature, while chalk powder does not, allowing for the separation based on this difference in physical properties.
Paradichlorobenzene dissolves in naphthalene because they are both nonpolar compounds. Nonpolar substances are soluble in nonpolar solvents like naphthalene due to similar attractive forces between molecules, known as London dispersion forces. This allows paradichlorobenzene to mix and dissolve evenly in naphthalene.
The melting point of sodium iodide is 651°C, while the melting point of naphthalene is 80.2°C. Sodium iodide has a much higher melting point compared to naphthalene due to stronger ionic bonds present in sodium iodide compared to the weaker van der Waals forces in naphthalene.
An aminobiphenyl is an amine derivative of biphenyl.
Naphthalene would be most soluble in non-polar solvents such as benzene or hexane because it is a non-polar molecule. Polar solvents like water would not dissolve naphthalene well due to the lack of strong intermolecular interactions between the polar water molecules and the non-polar naphthalene molecules.