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प्रश्न
Answer the following question :
Name the process used for the enrichment of sulphide ore.
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उत्तर
Froth flotation process is used for the enrichment of sulphide ore.
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संबंधित प्रश्न
Name the following:
A metal oxide that can be reduced by hydrogen.
Name the compound added to pure alumina to lower the fusion temperature during the electrolytic reduction of alumina.
How is the following metallic oxide reduced? Write the equation:
Zinc oxide
Write a balanced chemical equation for each of the following reactions :
(i) Reduction of copper (II) oxide by hydrogen
what is the function of cryolite in the extraction of aluminium, other than acting as a solvent for bauxite?
Name a non-metallic element which forms acidic and neutral oxides
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?
Answer the following question with respect by hydrogen :
Explain why powdered coke is sprinkled over than electrolytic mixture.
The following sketch represents the electroplating of an Iron cup with Nickel metal.
Study the diagram and answer the following questions:
- During electroplating, the iron cup is placed at the cathode. Why?
- Name the ion that must be present in the electrolyte.
- State one condition that is necessary to ensure that the deposit is smooth, firm and even.
- Write the reaction taking place at the cathode.
- What change would you observe at the anode?
