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Question
Identify the gas evolved in the following reaction:
\[\ce{MnO2}\] reacts with concentrated \[\ce{HCl}\].
Solution
Chlorine
Explanation:
Manganese oxide reacts with cone. \[\ce{HCl}\], releasing greenish colored chlorine and forming manganese chloride.
\[\ce{MnO2 + HCl2 -> MnCl2 + Cl2 + 2H2O}\]
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