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Ionic Equilibrium question

2010 · Shift 0 · Q7
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Ionic Equilibrium question

2010 · Shift 0 · Q7

JEE MainChemistryIonic EquilibriumMCQ+4 / −1
Three reactions involving H2PO4−H_2PO_4^−H2​PO4−​ are given below : (i) H3PO4H_3PO_4H3​PO4​ + H2OH_2OH2​O →\to→ H3O+H_3O^+H3​O+ +H2PO4−H_2PO_4^−H2​PO4−​(ii) H2PO4−H_2PO_4^−H2​PO4−​+ H2OH_2OH2​O →HPO42−\to HPO_4^{2−}→HPO42−​+ H3O+H_3O^+H3​O+ (iii) H2PO4−H_2PO_4^−H2​PO4−​+ OH−OH^-OH− →\to→ H3PO4H_3PO_4H3​PO4​ + O2−O^{2-}O2− In which of the above does H2PO4−H_2PO_4^−H2​PO4−​ act as an acid?
  1. A
    (ii) only
  2. B
    (i) and (ii)
  3. C
    (iii) only
  4. D
    (i) only
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