Question

The major product 'P' and 'Q' in the above reactions are

• A.
• B.
• C.
• D.

Hint:

Using a simple frame or just bolding for the box
Key Points:
Friedel-Crafts alkylation with primary alkyl halides often involves carbocation rearrangement to more stable secondary or tertiary carbocations before attacking the benzene ring.
1-Chloropropane rearranges to the isopropyl cation, leading to isopropylbenzene (cumene) as the major product.
The reaction sequence starting from cumene involving oxidation to cumene hydroperoxide followed by acid hydrolysis is the industrial Cumene Process for producing phenol and acetone.