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प्रश्न
Name the processes involved in dressing of the ores.
थोडक्यात उत्तर
उत्तर
Processes involved in dressing concentration of the ores are:
- Hydraulic washing or Gravity separation or Levigation
- Magnetic Separation
- Froth floatation
- Chemical Method or Leaching
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पाठ 7: Metallurgy - Exercise 7B [पृष्ठ १२९]
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संबंधित प्रश्न
The most common ore of iron is ________. (Calcium / Haematite)
Name the most common ore of the metal aluminium from which the metal is extracted. Write the chemical formula of the ore.
Which impurities are present in bauxite?
State a reason why zinc is used in:
dry cells
State the use of:
Mild steel,
Identify the pairs of metals and their ores from the following.
| Group A | Group B |
| a. Bauxite | i. Mercury |
| b. Cassiterite | ii. Aluminium |
| c. Cinnabar | iii. Tin |
Define and explain the meaning of the term ore.
Name the following:
The ore of zinc containing its sulphide.
The main ore used for the extraction of iron is ______.
Aluminium powder is used in thermite welding because
