- A
- B
- C
- D
Solution:
+ M effect exerted by F makes p- fluoro phenol less stable and strong base. So o - fluoro phenol is a weak acid among the four.
4- Fluro phenol pka= 9.9,
4- chlorophenol pka= 9.14,
4-bromo phenol pka= 9.17,
4- iodo phenol pka= 9.33
Which of the following is a weak acid?
Which of the following is a weak acid?
