• # question_answer 75) Which one of the following pairs of solution is not an acidic buffer? A) ${{H}_{2}}C{{O}_{3}}$and$~N{{a}_{2}}C{{O}_{3}}$B)  ${{H}_{2}}P{{O}_{4}}$and$N{{a}_{3}}P{{O}_{4}}$C)  $HCl{{O}_{4}}$and$NaCl{{O}_{4}}$D)  $C{{H}_{3}}COOH$and$C{{H}_{3}}COONa$

$HCl{{O}_{4}}$ and $NaCl{{O}_{4}}$cannot act as an acidic buffer.