Q.
The total number of diprotic acid(s) among the following is_______.
Citric acid, carbonic acid, oxalic acid, phosphoric acid, Benzoic acid, Nitrous acid, Hypochlorous acid, Sulphuric acid.
Equilibrium
Solution:
Acid
Formula
Nature
Citric acid
Triprotic
Carbonic acid
$H_2CO_3$
Diprotic
Oxalic acid
$(COOH)_2$
Diprotic
Phosphoric acid
$H_3PO_4$
Triprotic
Benzoic acid
$C_6H_5COOH$
Monoprotic
Nitrous acid
$HNO_2$
Monoprotic
Hypochlorous acid
$HClO$
Monoprotic
Sulphuric acid
$H_2SO_4$
Diprotic
| Acid | Formula | Nature |
|---|---|---|
| Citric acid | |
Triprotic |
| Carbonic acid | $H_2CO_3$ | Diprotic |
| Oxalic acid | $(COOH)_2$ | Diprotic |
| Phosphoric acid | $H_3PO_4$ | Triprotic |
| Benzoic acid | $C_6H_5COOH$ | Monoprotic |
| Nitrous acid | $HNO_2$ | Monoprotic |
| Hypochlorous acid | $HClO$ | Monoprotic |
| Sulphuric acid | $H_2SO_4$ | Diprotic |