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MCQ
What is the role of MnO2 in the laboratory preparation of chlorine?
Chemistry
A Reducing agent
B Oxidizing agent
C Catalyst
D Dehydrating agent
Explanation

MnO2 oxidizes HCl to produce Cl2: MnO2 + 4HCl -> MnCl2 + Cl2 + 2H2O. Here MnO2 is the oxidizing agent.

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