1.

Devise a series of reactions to convert benzene into meta-chlorobrombenzene. Select reagents and conditions from the following table, listing them in the order of use {:(,"Compound",,"Compound",,"Compound",),(1,"Sulphuric acid (conc.) heat",5,Mg "in ether",9,Cu_(2)Br_(2) + HBr,),(2,Cl_(2) + FeCl_(3) " and heat",6,PBr_(3),10,(CH_(3)CO)_(2)O + " Pyridine",),(3,NaNO_(2) +H_(3)O^((+)) 0^(@)C,7,H_(3)PO_(2),,,),(4,H_(2) " Pt catalyst",8,HNO_(3) ("conc.") + H_(2)SO_(4) ("conc.") " and heat",,,):}

Answer»

1 then 2 then 6
2 then 8 then 4 then 3 then 9
8 then 4 then 10 then 2 then 3 then 9
8 then 2 then 4 then 3 then 9

Solution :


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