Chemistry - Aromatic Hydrocarbon Question with Solution | TestHub

The reaction of compound P with CH₃MgBr (excess) in (C₂H₅)₂O followed by addition of H₂O gives Q, The compound Q on treatment with H₂SO₄ at 0℃ gives R. The reaction of R with CH₃COCl in the presence of anhydrous AlCl₃ in CH₂Cl₂ followed by treatment with H₂O produces compounds S. 

[Et it compounds P is ethyl group]