Chemistry - Aromatic Hydrocarbon Question with Solution | TestHub

$\stackrel{{\mathrm{NaNO}}_2}{\to }/\stackrel{\mathrm{HCl}}{\to }/\stackrel{\mathrm{KBr}}{\to }/\stackrel{H^{+}}{\to }$

$\stackrel{{\mathrm{Br}}_2/\mathrm{Fe}}{\to }/\stackrel{\mathrm{Sn}/\mathrm{HCl}}{\to }/\stackrel{{\mathrm{NaNO}}_2/\mathrm{HCl}}{\to }/\stackrel{\mathrm{CuBr}/\mathrm{HBr}}{\to }$

$\stackrel{\mathrm{Sn}/\mathrm{HCl}}{\to }/\stackrel{\mathrm{KBr}}{\to }/\stackrel{{\mathrm{Br}}_2}{\to }/\stackrel{{\mathrm{H}}^{+}}{\to }$

$\stackrel{\mathrm{Sn}/\mathrm{HCl}}{\to }/\stackrel{{\mathrm{Br}}_2}{\to }/\stackrel{{\mathrm{NaNO}}_2}{\to }/\stackrel{\mathrm{NaBr}}{\to }$