試題詳解

2. Which of the following substances will form basic solutions in an aqueous solution? NH₄Cl, Cu(NO₃)₂, K₂CO₃, NaF, NaCl?
(A) NaF and NaCl only
(B) NH₄Cl only
(C) K₂CO₃, NH4Cl , NaCl
(D)NH₄Cl, Cu(NO₃)₂
(E)NaF and K₂CO₃