3. Acids and Bases
Ranking Acidity
100PRACTICE PROBLEM
The structure shown below has four possible acidic groups. (Note that phosphorus is a period 3 element, hence it can expand its octet and have more than four bonds.)
![](https://lightcat-files.s3.amazonaws.com/problem_images/60ec8f4b820e54d4-1711421475826.jpg)
(i) Which group is the strongest acid? Justify your answer.
(ii) Which group is the weakest acid?
The structure shown below has four possible acidic groups. (Note that phosphorus is a period 3 element, hence it can expand its octet and have more than four bonds.)
(i) Which group is the strongest acid? Justify your answer.
(ii) Which group is the weakest acid?