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प्रश्न
The gas evolved when manganese dioxide is treated with conc. HCl is ______.
विकल्प
H2S
O2
MnCl2
Cl2
MCQ
रिक्त स्थान भरें
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उत्तर
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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