A.NaOH                B.SO₃                     C.KClO₃                       D.H₂SO₄

A.NaOH                B.Na₂SO₄                 C.NaHCO₃               D.H₂SO₄

A.SO₃                B.NH₄Cl                  C.NaCl                D.Na₂CO₃

仅能在水溶液中导电的电解质是

1. A.
   KOH
2. B.
   H₂SO₄
3. C.
   P₂O₅
4. D.
   KNO₃