H2SO4 is added to a large beaker of water. How is the solution different from the original water?

Sulfuric acid (H₂SO₄) dissolves in water and increases the concentration of hydrogen ions, making the solution acidic. Acids turn blue litmus paper red, so choice A is correct. Phenolphthalein stays colorless in an acidic solution, and the solution does not have fewer hydrogen ions or more hydroxide ions than the original water.

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