222- According to the figure below, in an Erlenmeyer flask on the left, 200 mL of 0.1 molar HCl solution reacts with a sufficient amount of $\text{MnO}_2$ and produces gas. The gas produced, after passing from the left Erlenmeyer flask, enters the right Erlenmeyer flask containing 100 mL of KBr solution and the reaction goes to completion. What was the initial molarity of the KBr solution? $(H = 1,\ Cl = 35.5,\ Br = 80\ \text{g.mol}^{-1})$ [Figure: Two Erlenmeyer flasks connected by a tube; left flask contains $\text{HCl} + \text{MnO}_2$, right flask contains KBr]
(1) $0.1$
(2) $0.2$
(3) $0.15$
(4) $0.25$
\textbf{222-} According to the figure below, in an Erlenmeyer flask on the left, 200 mL of 0.1 molar HCl solution reacts with a sufficient amount of $\text{MnO}_2$ and produces gas. The gas produced, after passing from the left Erlenmeyer flask, enters the right Erlenmeyer flask containing 100 mL of KBr solution and the reaction goes to completion. What was the initial molarity of the KBr solution? $(H = 1,\ Cl = 35.5,\ Br = 80\ \text{g.mol}^{-1})$
\textit{[Figure: Two Erlenmeyer flasks connected by a tube; left flask contains $\text{HCl} + \text{MnO}_2$, right flask contains KBr]}
\begin{tabular}{llll}
(1) $0.1$ & & (2) $0.2$ & \\
(3) $0.15$ & & (4) $0.25$ & \\
\end{tabular}