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प्रश्न
Explain the following term:
Metallurgy
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उत्तर
The process of extracting pure metals from their ores, followed by further purification using various processes. Metallurgy refers to the entire process.
संबंधित प्रश्न
Define the term ‘metallurgy’. State the processes involved in metallurgy ?
What do you observe when hydrogen is passed over heated copper oxide?
`MnO_2 + 4Al` 
…………….
`2Cu_2O +Cu_2S`
......................
Where are the cathode and anode in the electrolytic cell? Name the material used for these?
state the reactions at the two electrodes ?
Which metal is used for:
making face creams
What is magnalium? Name the main elements present in it? Write its one use ?
Arrange the metals in (2) in the decreasing order of reactivity.
In Wilfley table method to separate particles of gangue _______ method is used.
The chemical formula of zinc blend is _______.
Cassiterite is a copper ore.
Write scientific reason.
Magnetic separation method is used to separate the magnetic ingredients in the ores.
Write the molecular formulae of the following compound.
Copper pyrite
Observe the figure and name and explain in brief the following method:
Chemical formula of rust is ______
Zirconium is refined by ____________.
Which of following metals occurs in native state?
After partial roasting, the sulphide of copper is reduced by ______.
Calcination is used in metallurgy for the removal of?
