The correct answer is benzene. Benzene is a cyclic hydrocarbon with molecular formula C6H6. It is a colorless, flammable liquid with a sweet odor. Benzene is a common industrial solvent and is also used in the production of plastics, rubber, and other chemicals.
Cyclo pentane is a saturated hydrocarbon with molecular formula C5H10. It is a colorless, flammable liquid with a peppermint-like odor. Cyclo pentane is used as a solvent and in the production of other chemicals.
Naphthalene is an aromatic hydrocarbon with molecular formula C10H8. It is a white, crystalline solid with a strong odor. Naphthalene is used as a moth repellent and in the production of other chemicals.
Methane is a saturated hydrocarbon with molecular formula CH4. It is a colorless, odorless, and flammable gas. Methane is the main component of natural gas and is also used as a fuel.
In conclusion, the correct answer is benzene. Benzene is a cyclic hydrocarbon with molecular formula C6H6. It is a colorless, flammable liquid with a sweet odor. Benzene is a common industrial solvent and is also used in the production of plastics, rubber, and other chemicals.