Alcohols are characterized by the presence of a hydroxyl (-OH) functional group attached to a carbon atom.
In ethene, each carbon atom forms three sigma bonds and one pi bond, resulting in sp2 hybridization.
Bromine (Br2) in the presence of an inert solvent is used to add bromine across the double bond in alkenes.
Primary alkyl halides undergo SN2 reactions due to less steric hindrance, allowing backside attack by the nucleophile.
Benzene is an aromatic compound as it contains a planar, cyclic structure with conjugated pi bonds and follows Huckel's rule.
In the presence of peroxides, the addition of HBr to propene follows the anti-Markovnikov rule, forming 1-bromopropane as the major product.