Identify the option below that is an acid ionization reaction...?

2021-01-11 12:47 pm
A) H2O + NH2- <-> OH- + NH3

B) H2O + H2PO4- <-> H3PO4 + OH-

C) CN- + H2O <-> OH- + HCN

D) PH4+ + H2O <-> PH3 + H3O+

回答 (1)

2021-01-11 1:48 pm
✔ 最佳答案
An acid ionization gives H₃O⁺ ion, while a base ionization gives OH⁻ ion.
Hence, D) is an acid ionization, while the other three are base ionizations.

The answer: D) PH₄⁺ + H₂O ⇌ PH₃ + H₃O⁺


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