Advertisements
Advertisements
प्रश्न
Why does copper obtained in the extraction from copper pyrites have a blistered appearance?
Advertisements
उत्तर
The solidified copper obtained has blistered appearance due to the evolution of SO2 and so it is called blister copper.
APPEARS IN
संबंधित प्रश्न
The process of leaching alumina, using sodium carbonate is called
- Bayer's process
- Decomposition
- Cyanide process
- Hall's process
Write the reactions involved in the zone of reduction in blast furnace during extraction of iron.
What is the role of CO in the extraction of Iron?
Indicate the principle behind the method used for the refining of zinc.
What is 'copper matte' ?
Metals which occur in their native state in nature:
When a strip of metallic zinc is placed in an aqueous solution of copper nitrate the blue colour of the solution disappear due to formation of
In the thermite process, the reducing agent is:
Native silver metal forms a water solution complex with dilute solution of Na CN in the presence of
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:
