Kohn–Nirenberg type inequalities on stratified groups and study some of their
consequences. Our results reflect on many results previously known in special cases.
Moreover, a new simple proof of the Badiale–Tarantello conjecture [2] on the best constant
of a Hardy type inequality is provided. We also show a family of Poincaré inequalities as well
as inequalities involving the weighted and unweighted p-sub-Laplacians.