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प्रश्न
choose the most appropriate term to match the given description.
Crushing of the ore into a fine powder
पर्याय
Calcination
roasting
pulverization
smelting
उत्तर
The process of crushing ores into a fine powder in big crushers and ball mills is known as pulverisation.
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संबंधित प्रश्न
Select the process from the following which matches the given description.
(calcination, roasting, pulverisation, smelting)
Heating of the ore in the absence of air to a high temperature.
State the use of:
Mild steel,
Name an alloy of lead used in electrical wiring or electrical work in joining metals.
Name one metal occurring as a : Sulphide ore
Give the name and formula of an ore of zinc.
Reduction of the zinc compound which is the product of above reaction.
Give the name and formula of an ore of zinc.
What in addition to a zinc compound, is put into the furnace? State one large scale use of zinc.
The following question refer to the extraction of aluminium and iron from their ores:
Iron and aluminum ores both, contain impurities. Explain briefly how these impurities are removed in each case.
What is added to steel to make it stainless steel?
State the main components of the following alloy:
Duralumin
This is not an alloy of copper:
