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प्रश्न
Aluminium is extracted from its chief ore bauxite. The ore is first purified and then the metal is extracted from it by electrolytic reduction.
Mention one reason for the use of aluminium in thermite welding. Which particular property of cast iron makes it unsuitable for the construction of bridges?
उत्तर
As a reducing agent: Aluminium has a high affinity for oxygen. It readily removes oxygen from oxides of less reactive metals.
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संबंधित प्रश्न
Write the equation for the reaction that occurs at the cathode during the extraction of aluminum by electrolysis.
Name the process by which the refining of aluminium is done ?
Name three alloys of steel. Give their compositions and uses.
The reason for using Aluminium in the alloy duralumin is ______.
How is ore purified (give equations also)
In the Hall's process for extraction of aluminium, Sate the location of cathode and anode and explain what occurs at each electrode.
An aqueous solution of sodium chloride is not used for electrolytic reduction of sodium metal. Why?
The following question relate to the extraction of aluminium by electrolysis.
Explain why is it necessary to renew the anode periodically.
Name the following :
A compound added to lower the fusion temperature of electrolytic bath in the extracton of aluminium.
The compound that is not an ore of aluminum is ______.
