Dip a cotton ball in freshly squeezed lemon juice. Apply the lemon juice on the area with dark spots. You can also apply the lemon juice over your entire face. Let the lemon juice stay on your face for 10 to 15 minutes, then wash it off with plain water. Donât keep it on for more than 15 minutes, as lemon juice may irritate your skin if left for a long time.
Organic compounds are said to be the ones that contain a carbon-hydrogen bond. Most of the inorganic compounds do not contain carbon. There are many exceptions to this definition in the case of both organic and inorganic compounds. Organic substances include nucleic acids, fats, sugars, proteins, enzymes and fuels. All these substances include a carbon-hydrogen bond.
Organic compounds consist mainly of Hydrocarbons-Carbon and hydrogen in a molecule. Other organic compounds with functional groups may contain Oxygen, Nitrogen, Phosphorus, etc. Diamond is a crystal of pure C and exhibits no properties of organic compounds-it is solid, very hard, very stable. Organic compounds are generally gases or semi solids(at high molecular masses). Source(s): Chemistry classes.