Advertisements
Advertisements
प्रश्न
Explain the following term:
Metallurgy
Advertisements
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
brown powder deposit on iron?
Metal A has an electronic configuration of 2, 8, 1 and metal B has 2, 8, 8, 2 which is more reactive metal.
Give the effect of heat on their ?
oxides
Name:
(a) the processes involved in
concentration :-
Explain the following terms:
(a) flux
Explain the following term:
Gangue
Explain the following terms:
(c) slag
Explain the following terms:
smelting
`MnO_2 + 4Al` 
…………….
`ZnCO_3`
..............................
`2NaNO_3`
......................
`2AgNO_3`
...........................
State two properties of brass that render it more useful for some purpose than its components.
What is magnalium? Name the main elements present in it? Write its one use ?
Aluminium is extracted from its chief ore, bauxite. The ore is first purified and then the metal is extracted from it by electrolytic reduction.
Write three balanced equations for the purification of bauxite.
Complete the following flow chart and answer the questions below:
i) In which method pine oil is used?
ii) Explain what method of concentration in brief.
Explain the hydraulic separation method with a neat labelled diagram.
Observe the figure and name and explain in brief the following method:
Chemical formula of rust is ______
Name the process that is employed to refine aluminium.
