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Question
The gas evolved when manganese dioxide is treated with conc. HCl is ______.
Options
H2S
O2
MnCl2
Cl2
MCQ
Fill in the Blanks
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Solution
The gas evolved when manganese dioxide is treated with conc. HCl is Cl2.
Explanation:
Heating manganese dioxide (MnO2) with concentrated hydrochloric acid liberates chlorine gas (Cl2) through an oxidation-reduction reaction.
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