Advertisements
Advertisements
प्रश्न
What is meant by concentration of ores?
उत्तर
The set of processes used to remove as much of gangue as possible, is known as concentration of ores. It is also known as 'ore dressing'.
APPEARS IN
संबंधित प्रश्न
Name the following:
The property possessed by metals by which they can be beaten into sheets.
Name one metal which is extracted by reduction with aluminium.
The two metals which are extracted by means of electrolytic reduction of their molten salts are:
(a) magnesium and manganese
(b) iron and aluminium
(c) zinc and magnesium
(d) magnesium and aluminium
A sulphide ore is converted into metal oxide by the process of:
(a) carbonation
(b) roasting
(c) calcination
(d) anodising
Aluminum is used in thermite welding:
what is thermit?
Name the following:
The mixture of materials fed into a furnace to extract a metal.
Name the following:
The substance added to get rid of gangue in the extraction of metal.
State the property of the metal being utilized in the following :
| Use of metal | Property |
| Zinc in Galvanization | |
| Aluminium in Thermite welding |
Complete the following by selecting the correct option from the choices given:
The metal which does not react with water or dilute H2SO4 but reacts with concentrated H2SO4 is _________
Name the methods by which concentrated ore is converted to metallic oxide.
