Which of the following are Aprotic acids?

Question

1. H3PO2

2. H3PO4

3. H3PO3

4. H3BO3

Answer 1

We know that Aprotic acid(not Protic) is one that do not ionise in H₂O to give a proton.

So from above example:

1. H3PO2 - Monoprotic

2. H3PO4 - Triprotic

3. H3PO3 - Diprotic

4. H3BO3 - Aprotic(Not protic)