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प्रश्न
Complete the following by selecting the correct option from the choices given :
The metal whose oxide, which is amphoteric, is reduced to metal by carbon reduction ________
पर्याय
Fe
Mg
Pb
Al
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उत्तर
The metal whose oxide, which is amphoteric, is reduced to metal by carbon reduction Pb.
संबंधित प्रश्न
Name the compound added to pure alumina to lower the fusion temperature during the electrolytic reduction of alumina.
Name a non-metallic element which forms acidic and neutral oxides
Name a non-metallic element which has a metallic lustre
Write balanced equation for the following reaction:
Reduction of copper oxide by hydrogen.
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?
Answer the following question :
Name the process used for the enrichment of sulphide ore.
Steel is an alloy of iron and ______.
Name two metallic oxides which cannot be reduced by carbon, carbon monoxide or hydrogen.
Give the equation for the reduction of Iron (III) oxide.
Give the equations for the reduction of Lead (II) oxide.
