Engineering
Chemistry
Halogenation of aromatic compounds
Diazonium salt
Question

What is the correct sequence of reagents used for converting nitrobenzene into m-dibromobenzene ?

NaNO2/HCl/KBr/H+

Br2/Fe/Sn/HCl/NaNO2/HCl/CuBr/HBr

Sn/HCl/KBr/Br2/H+

Sn/HCl/Br2/NaNO2/NaBr

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Solution

Correct sequence of reagents for the following conversion.