Alkene - Any of the series of unsaturated hydrocarbons containing a double bond, including ethylene., Alkyne - Any of the series of unsaturated hydrocarbons containing a triple bond, including acetylene., Aromatic - Conjugated planar ring systems accompanied by delocalized pi electron clouds instead of alternating single and double bonds., Halogens - Reactive nonmetallic elements that form strongly acidic compounds with hydrogen from which simple salts can be made., Alcohol, Ether, Amine, Aldehyde, Ketone, Carboxyl Acid, Anhydride, Ester, Amide, Thiol, Disulfide, Sulfide, Nitrate, Nitrite, Nitrile, Alkane - any of the series of saturated hydrocarbons including methane,

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