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प्रश्न
Explain and give reasons why aluminium vessels should not be cleaned with powders containing alkalis.
उत्तर
Aluminium vessels should not be cleaned with powders containing alkalis because aluminium reacts with alkalis to form respective aluminate and hydrogen as:
\[\ce{2Al + 2NaOH + 2H2O -> 2NaAlO2 + 3H2}\]
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संबंधित प्रश्न
For the substance given below, describe the role played in the extraction of aluminium.
Cryolite
Name the process by which the refining of aluminium is done ?
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 ?
How is ore purified (give equations also)
Name the following:
The middle region of the blast furnace.
Describe the role played in the extraction of aluminum:
Sodium hydroxide
Name the following :
The compound formed by the reaction between calcium oxide and silica.
Answer the following question:
Write the chemical formula of one main ore of iron and aluminium.
What impurities are present in aluminium ore?
State true or false.
Bauxite is the main ore of aluminium.
