Nitration of Benzene
C₆H₆ +HNO₃ -----> C₆H₅NO₂ + H₂O

Halogenation of Benzene
C₆H₆ + Br₂ -----> C₆H₅Br + HBr

Bromination of Cyclohexene
C₆H₁₀ + Br₂ -----> C₆H₁₀Br₂

Phenol and Sodium Hydroxide
C₆H₅OH + NaOH -----> C₆H₅O⁻Na⁺ + H₂O

Phenol with Sodium
2C₆H₅OH + 2Na -----> 2C₆H₅O⁻Na⁺ + H₂

Phenol with Bromine
Phenol + Bromine -----> 2,4,6-tribromophenol + Hydrogen Bromide