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प्रश्न
Identify who I am!
Ore of Aluminum- ______
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उत्तर
Ore of Aluminum- Bauxite
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संबंधित प्रश्न
In the electrolytic refining of a metal M, what would you take as the anode, the cathode and the electrolyte?
Write the composition of the alloy called bronze.
Why are the metals like Na, K, Ca and Mg never found in their free state in nature?
Define the terms gangue.
What is meant by the 'concentration of ore'?
Name two metals which are always found in combined state.
Which of the following pair of metals exists in their native state in nature?
(a) Ag and Hg
(b) Ag and Zn
(c) Au and Hg
(d) Au and Ag
Which of the following metals are extracted by the electrolysis of their molten chlorides?
(a) Na and Hg
(b) Hg and Mg
(c) Na and Mg
(d) Cu and Fe
Answer the following questions based on the extraction of aluminium from alumina by Hall - Heroult’s Process :
What is the function of cryolite used along with alumina as the electrolyte?
The following question relate to the extraction of aluminium by electrolysis.
Give the equation for the reaction which takes place at the cathode.
What is the difference between calcination and roasting?
In electrolytic reduction of alumina _______ is used as a cathode.
Write the name.
The process of strong heating of carbonate ores in insufficient air–
Explain the concept of Calcination.
In thermite welding a mixture of ____________ is ignited with a burning magnesium ribbon which produces molten iron metal as a large amount of heat is evolved.
Which of the statements about the reaction, \[\ce{ZnO + CO -> Zn + CO2}\] is correct?
Which of the following metals exist in their native state in nature?
- Cu
- Au
- Zn
- Ag
A mineral from which the metal can be extracted economically and conveniently is known as ______.
