1.

How many of the following pairs are conjugate acid/base pairs? HCl,Cl^(-) KH,KCl H_(2)SO_(4),Na_(2)SO_(4) NaHS,Na_(2)S CH_(3)COOH,CH_(3)COOH_(2)^(+) Na_(2)CO_(3),NaHCO_(3) NH_(3),NH_(4)Br HCl,ClOH Aniline, anilinium

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ANSWER :6


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