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Chemistry · EQUILIBRIUM
हिन्दीFor a polyprotic acid \( \text{H}_3\text{PO}_4 \), the successive ionization constants are \( K_{a_1}, K_{a_2} \) and \( K_{a_3} \). The correct relative order of their magnitudes is:
Correct answer · Option 4
\( K_{a_1} > K_{a_2} > K_{a_3} \)
Explanation
Removing a positively charged proton from an increasingly negative species requires greater electrostatic energy, so \( K_{a_1} > K_{a_2} > K_{a_3} \).
