Chemistry Question from JEE Main 2026 · 23 January, Shift 1

$x$ mg of pure HCl was used to make an aqueous solution. $25.0 \, \text{mL}$ of $0.1 \, \text{M}$ Ba(OH)$_2$ solution is used when the HCl solution was titrated against it. The numerical value of $x$ is _____ × $10^{-1}$. (Nearest integer) Given: Molar mass of HCl and Ba(OH)$_2$ are $36.5 \, \text{g mol}^{-1}$ and $171.0 \, \text{g mol}^{-1}$ respectively.