Final answer:
Organic Chemistry is the subject of the question, specifically focusing on the reactions of benzene with various reagents. High School students study these reactions,
Step-by-step explanation:
The subject of this question is organic Chemistry, a field that studies the structure, properties, composition, reactions, and synthesis of organic compounds, which contain carbon atoms.
The grade level is High School, which usually covers basic principles of organic chemistry and introduction to chemical reactions involving hydrocarbons like benzene.
When benzene reacts with tert-butyl bromide in the presence of AlCl3, a Friedel-Crafts alkylation occurs, introducing a tert-butyl group onto the benzene ring to form tert-butylbenzene. Isobutyl alcohol reacting with BF3 would likely undergo a dehydration reaction to form an isobutyl cation,
which can then react with benzene to perform a Friedel-Crafts alkylation, yielding isobutylbenzene. Finally, when isobutylene reacts with hydrogen fluoride (HF), an electrophilic addition takes place to form tert-butanol, which is not directly related to the benzene reactions mentioned above.