Question

Identify the substance oxidised, substance reduced, oxidising agent and reducing agent: Pb3O4 + 8HCl -> 3PbCl2+ Cl2+ H2O

Answer 1

Pb3O4 is reduced
Hydrogen is getting oxidized
3PbCl2 is reducing agent
8HCL is oxidizing agent

Answer 2

The substance oxidized, substance reduced, oxidizing agent, and reducing agent are HCl, Pb3O4, Pb3O4, and HCl respectively.

• Oxidation is the process when an element or species loses an electron or gains the electro-negative element or losses the electro-positive element.
• Similarly, reduction is the process when an element or species gain an electron or losses the electro-negative element, or gains in the electro-positive element.
• Here, the oxidation state of chlorine is changed from -1 to 0 so chlorine is oxidized while lead gains electron loss by HCl. So Pb3O4 is reduced.
• The reducing agent is HCl because a reducing agent is a substance that reduces other substances.
• The oxidizing agent is Pb3O4 because oxidation of HCl occurred in the reaction.

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