Advertisements
Advertisements
प्रश्न
If fused metallic chloride is electrolyzed, at which electrode would the metal be obtained?
उत्तर
Metal would be obtained at cathode.
APPEARS IN
संबंधित प्रश्न
Name oxide of one metal which is reduced by (give equation): Reduction with heat alone
Name a non-metallic element which has a metallic lustre
With reference to the reduction of copper (II) oxide , iron (II) oxide, lead (II) oxide and magnesium oxide; place the oxides in order of increasing ease of reduction.[i.e. first write the oxide that is most difficult to reduce and at last, the oxide, that is most easily reduced.]
What is the type of bonding expected in a metallic chloride?
What metallic property is shown by the non-metal graphite?
In order to obtain one tone of aluminium, the following inputs are required:
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.
(i) Write the formula of cryolite.
(ii) Write down the word which correctly completes the following sentence.
"By dissolving aluminium oxide in cryolite, a ______ (conducting / non- conducting) solution is produced.
(iii) Why so much graphite required for this electrolytic process.
(iv) Write the equation for the reaction which takes place at cathode.
Answer the following question with respect by hydrogen : Identify the components of the electrolyte other than pure alumina and the role played by each.
Steel is an alloy of iron and ______.
Name two metallic oxides which cannot be reduced by carbon, carbon monoxide or hydrogen.
Write a balanced equation for the reduction of copper (ll) oxide by hydrogen.
