Equilibrium Ques 74

74. Which one of the following pairs of solution is not an acidic buffer?

(a) $HClO_4$ and $NaClO_4$

(b) $CH_3 COOH$ and $CH_3 COONa$

(c) $H_2 CO_3$ and $Na_2 CO_3$

(d) $H_3 PO_4$ and $Na_3 PO_4$

Show Answer

Solution:

  1. (a) Among the given acids, $HClO_4$ is a very strong acid, completely dissociates

$\therefore[HA] \to 0$ in this case, hence cannot be used for acidic buffer.



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