Advertisements
Advertisements
प्रश्न
Which method of refining is used to get 99.8% pure aluminium?
उत्तर
Electrolytic refining
APPEARS IN
संबंधित प्रश्न
In the extraction of aluminium: Name the process of concentration of bauxite.
Metallic oxides of zinc, magnesium and copper were heated with the following metals.
| Metal | Zinc | Magnesium | Copper |
| Zinc oxide | – | – | – |
| Magnesium oxide | – | – | – |
| Copper oxide | – | – | – |
In which cases will you find displacement reactions taking place?
Which of the following pairs will give displacement reactions?
Which metal becomes black in the presence of hydrogen sulphide gas in air?
How is aluminium metal extracted? Explain with the help of an equation.
Give the principles of the froth floatation process.
Complete the incomplete statement with missing word:
Metals form positive ions while non- metals ______.
Name the following:
The process of heating an ore to a high temperature in the presence of air.
What is the difference between calcination and roasting?
In the electrolytic method, a layer of highly active metal is applied to a less active metal.
