In Which of the Following Reactions Does the H₂PO₄^- Ion $\to$

question 85

Multiple Choice

In which of the following reactions does the H₂PO₄^- ion act as an acid?

• A)H₃PO₄ + H₂O \(\to\) H₃O⁺ + H₂PO₄^-
• B)H₂PO₄^- + H₂O \(\to\) H₃O⁺ + HPO₄^2-
• C)H₂PO₄^- + OH^- \(\to\) H₃PO₄ + O^2-
• D)The ion cannot act as an acid.
• E)Two of these.

---

Definitions:

Habituation Response

A decrease in response to a stimulus after repeated exposure, an elementary form of learning or adaptation.

Axoaxonic

Pertains to the type of synaptic connection where an axon terminal of one neuron connects to the axon of another neuron.

Dendrodendritic

Relating to, or denoting synaptic connections between the dendrites of two neurons.

Axodendritic

Pertaining to the connection between the axon of one neuron and the dendrite of another, facilitating the transmission of nerve impulses.