Advertisements
Advertisements
प्रश्न
Explain the term Metallurgy.
Advertisements
उत्तर
The various processes involved in the extraction of metals from their ores and refining are called metallurgy.
APPEARS IN
संबंधित प्रश्न
Give the importance of the following for living beings:
Carbon
Name the processes involved in refining of ores.
Explain the following terms:
(c) slag
Name the methods used for purification?
`Ag2O`
................................
`2NaNO_3`
......................
Where are the cathode and anode in the electrolytic cell? Name the material used for these?
Why is flux used in the blast furnace?
How is it removed?
Distinguish between electrolytic methods of reduction and refining.
Which metal is used for:
making pipes, buckets, water tanks,
Match the columns.
| Group A | Group B |
| 1. ZnS | a) Copper Sulphide |
| 2. HgS | b) Bauxite |
| c) Cinnabar | |
| d) Zinc blend |
Right or wrong sentence.
Cassiterite is a copper metal.
Write the molecular formulae of the following compound.
Copper pyrite
Distinguish between:
Froth floatation - Leaching
Which of the following methods is used to separate wolframite and stannic oxide present in cassiterite?
Calculate the difference between heat of combustion of carbon monoxide gas at constant pressure and at constant volume at 27°C? (R = 2 cal K-1 mol-1).
After partial roasting, the sulphide of copper is reduced by ______.
