Question

Consider this reaction: NH4+ + HPO42− → NH3 + H2PO4−

Which is the Bronsted-Lowry acid ?


NH4+

HPO42-

HPO42–

H2PO4–

Answer 1

NH4+ (a)

Step-by-step explanation:

Answer 2

Answer: Option (a) is the correct answer.

Step-by-step explanation:

According to Bronsted-Lowry, species which are able to donate or give hydrogen ions are known as acids. Whereas species which accept hydrogen ions are known as bases.

For example,
`NH^(+)_(4) + HPO^(2-)_(4) \rightarrow NH_(3) + H_(2)PO^(-)_(4)`

Here
`NH^(+)_(4)` is donating hydrogen ions hence it is the Bronsted-Lowry acid.