Question:
explain amphoteric character of H2po4-
Answer:
H2PO42- is amphiprotic in nature because it can act both as an acid and as a base.
Acids produce a H+ in water (proton donor): For H2PO42-
H2PO4- → H+ + HPO42- or
H2PO4- + H2O ----> H3O+ + HPO42-
Bases gain an H+ in water(proton acceptor)
H2PO4- + H2O ----> H3PO4 + OH-
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