1>2>3
Explanation-
The decreasing order of the relative acidic strengths of o-toluic , m- toluic acid and p-toluic acid is:
o-toluic acid > m-toluic acid > p-toluic acid.
In a ca...
Ist is most acidic...ortho effect.
Due to ortho effect there is repulsion between ch3 group and cooh group due to which cooh group goes out of plane and after deprotonation coo- is...