Advertisements
Advertisements
प्रश्न
Sulphide ores : Roasting : : Carbonate ores : _______
Advertisements
उत्तर
Sulphide ores : Roasting : : Carbonate ores : Calcination
APPEARS IN
संबंधित प्रश्न
In the extraction of aluminium: Name the process of concentration of bauxite.
In the extraction of aluminium Write the cathode reaction in electrolytic reduction of alumina.
Why does a new aluminium vessel lose shine so soon after use?
Name the chemical compound which is electrolysed in molten state to obtain aluminium metal. Which gas is evolved during this process?
Name the electrode at which aluminium metal is produced.
Name the metal which is extracted from the ore called ‘rock salt’.
Calamine ore can be converted into zinc oxide by the process of ______.
Which metal can be extracted from the following ore?
bauxite
Give reasons, why aluminum is used in:
painting electric and telegraphic poles
Give the chemical formula of :
Sodium aluminate
What is galvanized iron.
Complete the incomplete statement with missing word:
Metals form positive ions while non- metals ______.
State the property of the metal being utilized in the following :
| Use of metal | Property |
| Zinc in Galvanization | |
| Aluminium in Thermite welding |
In electrolytic reduction of alumina _______ is used as a cathode.
Iron is _______.
Extraction of moderately reactive elements is done by _______ and _______ method.
Identify who I am!
Ore of Aluminum- ______
Explain Bayer’s process.
Explain the reactions of nonmetals with water with the help of examples.
Electrical wires have a coating of an insulting material. The material, generally used is
