Question

Between para-nitrobenzoic acid and 2,6-dimethyl-4-nitrobenzoic acid, which is more acidic and why?

Answer 1

2,6-dimethyl- 4-nitrobenzoic acid, is more acidic then para
nitro benzoic acid, in 2,6- dimethyl-4- nitrobenzoic acid
consist of Ortho effect due to presence off dimethyl .
Ortho effect increase the acidity of benzoic acid ,in 4-
nitrobenzoic acid Ortho effect not present.