Advertisements
Advertisements
Question
Complete the following by selecting the correct option from the choices given :
The diavalent metal whose oxide is reduced to metal by electrolysis of its fused salt is ________
Options
Al
Na
Mg
K
Advertisements
Solution
The diavalent metal whose oxide is reduced to metal by electrolysis of its fused salt is Al.
APPEARS IN
RELATED QUESTIONS
Name the following:
A metal oxide that can be reduced by hydrogen.
Give reason for the following:
Carbon anodes are used in the electrolytic extraction of aluminium.
Give equation for the following conversion: Aluminium to aluminium nitride.
Name oxide of one metal which is reduced by (give equation): Reduction with heat alone
what is the function of cryolite in the extraction of aluminium, other than acting as a solvent for bauxite?
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.
Answer the following question with respect by hydrogen :
Explain why powdered coke is sprinkled over than electrolytic mixture.
Write the observation for the following:
A paper dipped in potassium permanganate solution is put on the mouth of a test tube containing sulphur dioxide gas.
Give the equations for the reduction of Lead (II) oxide.
