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Firstly add some AgNO3. You should see that no precipitate forms. If it forms a precipitate, it is not a SO42-.
Then add some BaCl2 - If there are SO42- ions a white precipitate will form.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoAdd BaCl2 or (CH3COO)2Pb to the solution the produced white precipitates confirm the presence of SO42- ion.
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PH test
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