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प्रश्न
What is red mud, how is it removed?
उत्तर
- Red mud, also known as bauxite residue, is industrial waste generated during the refinement of bauxite into alumina using the Bayer process. It is composed of various oxide compounds, including iron oxides, which give it the red colour.
- Red mud consists of ferric oxide, sand, etc., left after bauxite dissolves in NaOH, forming sodium aluminate, which filtration removes.
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संबंधित प्रश्न
Choose the correct answer from the options given below:
The main ore used for the extraction of iron is
A. Haematite
B. Calamine
C. Bauxite
D. Cryolite
Also give the names of their repective ores ?
Why does iron or zinc not occur free in nature?
Name an ore of zinc.
Which impurities are present in bauxite?
Explain with reason:
Electrolytic reduction is done to obtain aluminium?
Give reason for the following:
Galvanized metal ions should not be used for storing food.
Write the name and formula of two ores of the following: Aluminium
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.
Nickel is purified by thermal decomposition of its:-
