Advertisements
Advertisements
प्रश्न
Write scientific reason.
Magnetic separation method is used to separate the magnetic ingredients in the ores.
Advertisements
उत्तर
- The magnetic separation process is based on the differences in magnetic properties of the ore components.
- When the powdered ore is dropped over the moving belt near nonmagnetic roller, the nonmagnetic particles are carried further along with belt and fall in the collector vessel placed away from magnetic roller. At the same time, the magnetic portion of the ore is attracted by the magnetic roller and falls in the collector vessel near the magnetic roller.
Thus, magnetic separation method is used to separate the magnetic ingredients in the ores.
APPEARS IN
संबंधित प्रश्न
Give the importance of the following for living beings:
Nitrogen
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:
(b) two metallic oxides which cannot be reduced by carbon, carbon monoxide or hydrogen
Explain the following terms:
smelting
With a labelled diagram, explain the electro-refining of a particular metal.
`MnO_2 + 4Al`
…………….
state the reactions at the two electrodes ?
Why is flux used in the blast furnace?
How is it removed?
Which metal is used for:
making face creams
What is magnalium? Name the main elements present in it? Write its one use ?
A compound that is added to lower the fusion temperature of the electrolytic bath in the extraction of aluminium.
What do you observe when hydrogen is passed over heated copper oxide?
Write the molecular formulae of the following compound.
Stannic oxide
Draw a neat and labelled diagram for Froth Floatation Process.
Explain the froth floatation method with a neat labelled diagram.
The chemical name of rust is ______.
Explain the following term:
Metallurgy
Name the process that is employed to refine aluminium.
