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प्रश्न
Name two metallic oxides which cannot be reduced by carbon, carbon monoxide or hydrogen.
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उत्तर
Potassium and sodium oxides cannot be reduced by carbon, carbon monoxide and hydrogen.
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संबंधित प्रश्न
Name the compound added to pure alumina to lower the fusion temperature during the electrolytic reduction of alumina.
Give appropriate scientific reasons for Zinc oxide can be reduced to zinc metal by using
carbon, but aluminium oxide cannot be reduced by a reducing agent
How is the following metallic oxide reduced? Write equations:
Iron (ll) oxide
Explain with reason:
In the electrolytic reduction of alumina, the graphite anode is gradually consumed.
Name oxide of one metal which is reduced by (give equation): Reduction with heat alone
Name a non-metallic element which is a liquid at ordinary temperatures
Write balanced equation for the following reaction:
Reduction of copper oxide by hydrogen.
If fused metallic chloride is electrolyzed, at which electrode would the metal be obtained?
4 tones of bauxite, 150 Kg of sodium hydroxide and 600 Kg of graphite.
The aluminium compound in bauxite is aluminium oxide and the main impurity is iron (II) oxide. Aluminium is obtained by the electrolysis of aluminium oxide dissolved in cryolite.
(a) When bauxite is treated with sodium hydroxide solution, what happens to:
(i) the aluminium oxide?
(ii) The iron (III) oxide?
Give the equation for the reduction of Zinc oxide.
