Name the chief ore of unless give chemical equations for the extractionof silver from of this ore
Answers
Answered by
1
Your question is incomplete i think but you might be asking about silver
Argentite is the chief ore of silver
Ag2S + GNaCN → 2Na [Ag(CN)2] + NO2S
Na2S + O2 → Na2SO4
Zn + 2Na [Ag (CN)2] → NO2[Zn (CN)4] | 2Ag
Argentite is the chief ore of silver
Ag2S + GNaCN → 2Na [Ag(CN)2] + NO2S
Na2S + O2 → Na2SO4
Zn + 2Na [Ag (CN)2] → NO2[Zn (CN)4] | 2Ag
Answered by
0
Answer:
Pottassium Permanganate (KMnO4) is prepared from Pyrolusite ore (MnO2). The finely powdered Pyrolusite ore (MnO2) is fused with an alkali metal hydroxide like KOH in the presence of air or an oxidizing agent like KNO3 to give the dark green potassium Manganate (K2MnO4). Potassium manganate disproportionate in a neutral or acidic solution to give potassium permanganate.
2 MnO2 + 4 KOH + O2 ----------> 2K2MnO4 + 2H2O
3 MnO42- + 4H+ ------------> 2MnO4- + MnO2 + 2H2O
Commercially potassium permanganate is prepared by the alkaline oxidative fusion of Pyrolusite ore (MnO2) followed bythe electrolytic oxidation of manganate (4) ion.
2 MnO2 + 4KOH + O2 -----------> 2K2MnO4 + 2H2O
MnO42- ------(electrolytic oxidation)----> MnO4- + e-
Explanation:
Similar questions