Question : Adding Cl2 to benzene in the presence of AlCl3 is an example of:
Option 1: Elimination reaction
Option 2: Substitution reaction
Option 3: Addition reaction
Option 4: None of the options
Correct Answer: Substitution reaction
Solution : The correct option is Substitution reaction .
A substitution reaction is the addition of chlorine (Cl 2 ) to benzene (C 6 H 6 ) in the presence of aluminium chloride (AlCl 3 ). This is referred to as electrophilic substitution. One or more hydrogen atoms in the benzene ring are replaced by chlorine atoms during this process. The aluminium chloride functions as a catalyst, creating electrophilic species capable of attacking the benzene ring.