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प्रश्न
Why does copper obtained in the extraction from copper pyrites have a blistered appearance?
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उत्तर
The solidified copper obtained has blistered appearance due to the evolution of SO2 and so it is called blister copper.
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संबंधित प्रश्न
In the extraction of Al, impure Al2O3 is dissolved in conc. NaOH to form sodium aluminate and leaving impurities behind. What is the name of this process?
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[Ag(CN)2]− to Ag
What are the differences between minerals and ores?
The important ore of iron is:-
In the electrolytic process for the extraction of aluminium the electrolyte is:-
When compared to ΔG° for the formation of Al2O3 ΔG° for the formation of Cr2O3 is
In the extraction of iron, the slag produce is
Match List - I with List - II.
| List - I | List - II | ||
| (One) | (Composition) | ||
| (A) | Siderite | (I) | FeCO3 |
| (B) | Malachite | (II) | CuCO3 · Cu(OH)2 |
| (C) | Sphalerite | (III) | ZnS |
| (D) | Calamine | (IV) | ZnCO3 |
Choose the correct answer from the options given below:
Calamine and Malachite, respectively, are the ores of ______.
The ore that contains both iron and copper is ______.
