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प्रश्न
Consider the following salts:
Na2CO3, NaCl, NH4Cl, CH3COONa, K2SO4, (NH4)2SO4
Which of salts will give:
acidic solutions?
उत्तर
The salt solutions of NH4Cl and (NH4)2SO4 give acidic solutions, because these salts are each formed from a weak base and a strong acid. The ionisation of a weak base is not complete, whereas a strong acid ionises completely. Hence, there are more H+ ions than OH- ions, making the solutions acidic.
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