Science, asked by subbaraog83, 1 year ago

Inforamtion about extraction of metals of lowe reactivity silver platnium and gold

Answers

Answered by starlogo25403
2

these metals are first converted to their oxides and then reduced to metals.

The oxides of the metals can be reduced to metals by only heating.

eg: 1) Ag2S + 2O2 -------- heat 2AgO + SO2

2 Ag2O --------heat 4Ag + O2

2) Au2S + 2O2------- heat 2AuO + SO2

2 Au2O3------ heat 4Au + 3O2

3) 2PtS + 3O2--------heat 2PtO + 2SO2

2PtO--------heat 2Pt + O2

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