Which of the following salts will have the highest pH in water ?

1.	Which of the following salts will have the highest pH in water ?
Answer» KCL NaCl `Na_(2) CO_(3)` `CuSO_(4)` Solution :KCl and NaCl are salts of strong acid and strong base. Their aqueous solutions will be neutral with pH = 7. `Na_(2)CO_(3)` is a salt of strong base (NaOH) and weak acid `(H_(2)CO_(3))`. Its solution will be BASIC with `pH gt 7. CuSO_(4)` is a salt of weak base, `CU(OH)_(2)` and strong acid, `H_(2)SO_(4)`. Its solution will be acidic with `pH lt 7`.

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