MCQ
The conjugate base of ${H_2}PO_4^ - $ is
- A${H_3}P{O_4}$
- B${P_2}{O_5}$
- C$PO_4^{3 - }$
- ✓$HPO_4^{2 - }$
✓
Answer
Correct option: D.
$HPO_4^{2 - }$
(d)$\mathop {{H_2}PO_4^ - }\limits_{{\rm{Conjugate acid}}} \to {H^ + } + \mathop {HPO_4^{2 - }}\limits_{{\rm{Conjugate base}}} $
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