Advertisements
Advertisements
Question
Answer the following question :
Name the process used for the enrichment of sulphide ore.
Advertisements
Solution
Froth flotation process is used for the enrichment of sulphide ore.
APPEARS IN
RELATED QUESTIONS
An element L consists of molecules.
When L is heated with iron metal, it forms a compound, FeL. What chemical term would you use to describe the change undergone by L?
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.
Write a balanced chemical equation for each of the following reactions :
(i) Reduction of copper (II) oxide by hydrogen
Name oxide of one metal which is reduced by (give equation): Reduction with carbon
Name oxide of one metal which is reduced by (give equation): Electrolytic reduction
Name a non-metallic element which has a metallic lustre
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?
Name the following:
The compound formed by the reaction between calcium oxide and silica.
Steel is an alloy of iron and ______.
