Your choice (4-bromoaniline) is

Let's separate 4-bromoaniline.

You want to extract 4-bromoaniline* into the aqueous solution by changing it to a water-soluble salt*.

Which aqueous solution will you add?

dilute aqueous HCl (a strong inorganic acid)
dilute aqueous NaOH (a strong inorganic base)

Click ADD to add the selected solution to the separatory funnel