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प्रश्न
Name the following:
The kind of welding in which aluminium powder is used.
उत्तर
Thermite welding
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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.
Which impurities are present in bauxite?
Give the name and formula of the main orea of iron and zinc ?
State a reason why zinc is used in:
galvanization,
Explain the following:
Zinc is used to cover iron so as to prevent rusting of iron. Why?
Name one metal occurring as a : Sulphide ore
Complete and balance the following equation:
Al + N2 →
Complete and balance the following equation:
Fe2O3 + CO →
The main ore used for the extraction of iron is ______.
Explain concept with example/explain with the help of a balanced equation.
Ores
