The answer is a that is 3 ions, it's an acid
When H₂SO₄ ionizes in water, it will produce 3 ions and as it gives H⁺ ions by reacting with water so it is known as acid. The ionization of H₂SO₄, can be shown by following reactions.
H₂SO₄ + H₂O ---> H₃O⁺ + HSO₄⁻
HSO₄⁻ + H₂O ---> H₃O⁺ + SO₄²⁻
As it can be seen from the equations that the number of ions produced is 3.
