Arrange the following acids in order of their increasing acidity

Options

A. `A lt B lt C lt D`
B. `B lt C lt A lt D`
C. `C lt B lt D lt A`
D. `C lt D lt B lt A`

Answer

D

Explanation

Due to ortho-effect,o-nitrobenzoic acid is the strongest acid. Further, since electron-withdrawing groups such as `NO_(2)` increase while electron-donating groups such as OH decrease the acid strength w.r.t. parent acid, therefore, the overall acedity increases in the order: `C lt D lt B lt A` i.e.,option (d) is correct.