There are three glasses with transparent liquids on the table. Your task is to determine which glass contains barium

There are three glasses with transparent liquids on the table. Your task is to determine which glass contains barium chloride BaCl2. To do this, the laboratory assistant suggested you: H2SO2, AgNO3, NaOH. Choose from the proposed all possible reagents with which you can detect a substance. Write down the plan for which you will conduct the experiment to determine the substance.

Pour H2SO4 into all glasses. Where a BaCL2 solution is present, a white precipitate will appear. We add AgNO3. In a glass of BaCL2, a white curdled precipitate will stand out. When BaCl2 and NaOH interact, the reaction does not take place.