A:在pH=12的溶液中,K+、Cl﹣、HCO3﹣、Na+可以大量共存
B:在pH=0的溶液中,Na+、NO3﹣、SO32﹣、K+可以大量共存
C:由0.1mol•L﹣1一元碱BOH溶液的pH=10,可推知BOH溶液存在BOH=B++OH﹣
D:由0.1mol•L﹣1一元酸HA溶液的pH=3,可推知NaA溶液存在A﹣+H2O⇋HA+OH﹣
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