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MHT CET202618 April 2026Morning ShiftChemistryIonic EquilibriumActual

Identify the conjugate bases of H ₃ PO ₃ and H ₂ SO ₄ respectively from following.

Options

  1. AHPO ₃²⁻ and SO ₄²⁻
  2. BHPO ₃²⁻ and HSO ₄⁻
  3. CH ₂ PO ₃⁻ and HSO ₄⁻
  4. DPO ₃³⁻ and SO ₄²⁻

Correct answer

C. H ₂ PO ₃⁻ and HSO ₄⁻

Step-by-step solution

The conjugate base of a Bronsted acid is formed by the removal of one proton ( H^+ ) from it. For H₃PO₃ , the removal of one H^+ yields its conjugate base: H₃PO₃ H^+ + H₂PO₃^- For H₂SO₄ , the removal of one H^+ yields its conjugate base: H₂SO₄ H^+ + HSO₄^- Therefore, the conjugate bases of H₃PO₃ and H₂SO₄ are H₂PO₃^- and HSO₄^- respectively.

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