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Which of the following metal oxides are reduced by self reduction method?
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Self-reduction process: This process is also called auto reduction process or air reduction process.
Hence options A,B & C are correct options.
The sulphide ores of less electropositive metals like Hg, Pb, Cu etc. are heated in the air as to convert part of the ore into oxide or sulphate which then reacts with the remaining sulphide ore to give the metal and sulphur dioxide.
No external reducing agent is used in this process.
Hence options A,B & C are correct options.
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| Question Text | Which of the following metal oxides are reduced by self reduction method? |
| Answer Type | Text solution:1 |
| Upvotes | 150 |
