只用一种试剂就能把Na2SO4、NaCl、(NH4)2SO4、NH4Cl四种溶液区分开来,这

只用一种试剂就能把Na2SO4NaCl(NH4)2SO4NH4Cl四种溶液区分开来,这种试剂是

A.AgNO3     B.NaOH    C.BaCl2     D.Ba(OH)2

答案

D

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