Also can polymerize . Alk ynes contain 1 triple bond. General rule, 2n-2, sp hybridization around the triple bond. The presence of the triple bond makes these very reactive. Aromatic hydrocarbons-all involve the molecule benzene C 6 H 6 .
Aromatic compounds are very stable.
Benzene molecules are very carcinogenic. Addition reactions are a good test for a double bond. A diatomic bromine solution of carbon tetrachloride is reacted with the suspected compound. Hydrocarbon Derivatives 1. Alcohols contain the hydroxide group, OH, substituted for hydrogen.