AP EAMCET · Chemistry · Ionic Equilibrium
Which of the following is not a conjugate acid-base pair?
- A \(\mathrm{HPO}_3^{2-}, \mathrm{PO}_3^{3-}\)
- B \(\mathrm{H}_2 \mathrm{PO}_4^{-}, \mathrm{HPO}_4^{2-}\)
- C \(\mathrm{H}_2 \mathrm{PO}_4^{-}, \mathrm{H}_3 \mathrm{PO}_4\)
- D \(\mathrm{H}_2 \mathrm{PO}_4^{-}, \mathrm{PO}_3^{3-}\)
Answer & Solution
Correct Answer
(D) \(\mathrm{H}_2 \mathrm{PO}_4^{-}, \mathrm{PO}_3^{3-}\)
Step-by-step Solution
Detailed explanation
\begin{aligned} & \text { Acid }_1+\text { Base }_2 \rightleftharpoons \text { Acid }_2+\text { Base }_1 \\ & \mathrm{HPO}_3^{2-}+\mathrm{H}_2 \mathrm{O} \rightleftharpoons \mathrm{H}_3 \mathrm{O}^{+}+\mathrm{PO}_3^{3-} \\ & \mathrm{H}_2 \mathrm{PO}_4^{-}+\mathrm{H}_2 \mathrm{O}…
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