Name a substance that oxidizes concentrated HCL to chlorine
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1. Manganese Dioxide(MnO2)
2. Lead Dioxide (PbO2)
3. Red Lead (Pb3O4)
4. Potassium Permanganate (KMnO4)
5. Potassium Dichromate (K2Cr2O7)
6. CaOCl2
Answer: The substance that oxidizes concentrated HCL to chlorine is mangnese(IV) oxide.
Explanation:
When mangnese dioxide reacts with the hydrochloric acid, the products formed are mangnese chloride, water and chlorine gas.
The balance reaction is
MnO2+ 4HCl --> MnCl2+ Cl2+ 2H2O
The reducing agent used in the reaction is HCl and the oxidizing agent used in the reaction is MnO2.