Jee Main
Ionic Equilibrium
JEE Main 2025 (Online) 23rd January Morning Shift
INTEGER+4 / -12025
If 1 mM solution of ethylamine produces $\mathrm{pH}=9$, then the ionization constant $\left(\mathrm{K}_{\mathrm{b}}\right)$ of ethylamine is $10^{-x}$. The value of $x$ is _________ (nearest integer).
[The degree of ionization of ethylamine can be neglected with respect to unity.]