Advertisements
Advertisements
प्रश्न
Atomic number of aluminium is _______ and its electronic configuration is _______.
पर्याय
13, (2, 8, 3)
12, (2, 8, 2)
13, (3, 10)
12, (2, 10)
Advertisements
उत्तर
Atomic number of aluminium is 13 and its electronic configuration is (2, 8, 3).
APPEARS IN
संबंधित प्रश्न
In the extraction of aluminium: Name the process of concentration of bauxite.
What is meant by the ‘concentration of ore’?
Name the gas produced when calamine ore is calcined.
What iron compound is present in haematite ore? Also write its chemical formula.
Which of the following metals can be obtained from haematite ore?
During galvanisation, iron metal is given a thin coating of one of the following metals. This metal is:
Give the principles of the hydrolytic method.
Define the following term.
Mineral
State one observation for each of the following :
Copper sulphate solution is electrolysed using copper electrodes.
Answer the following questions based on the extraction of aluminium from alumina by Hall - Heroult’s Process :
Why is powdered coke sprinkled on top of the electrolyte?
Name the following:
The process in which an ore is heated in air so that oxygen gets added to it to form the oxides.
State the property of the metal being utilized in the following :
| Use of metal | Property |
| Zinc in Galvanization | |
| Aluminium in Thermite welding |
Zinc blende is converted to oxide by ______ process.
If Cu, Fe, Zn, Al elements are arranged in increasing order of their reactivity then the correct order would be which of the following?
Sulphide ores : Roasting : : Carbonate ores : _______
Explain in brief types of extraction of moderately reactive metals according to their reactivity.
Explain Bayer’s process of concentration of bauxite with a chemical equation.
Explain in brief electrolytic reduction of alumina with a neat labelled diagram.
Oxides of moderately reactive metals like Zinc, Iron, Nickel, Tin, Copper, etc. are reduced by using:
Which of the following metals exist in their native state in nature?
- Cu
- Au
- Zn
- Ag
