How would you react to the statement that the electronegativity of $N$ on the Pauling scale is $3.0$ in all nitrogen compounds?

(N/A) The statement is incorrect.
The electronegativity of an element is not a constant value; it depends on the chemical environment.
Specifically,it depends on the hybridization state of the nitrogen atom (e.g.,$sp$,$sp^2$,or $sp^3$ hybridization).
It also depends on the oxidation state of the nitrogen atom and the nature of the atoms or groups attached to it.