Arrange the following general metallurgical processes in their proper order.
(a) Reduction of ore
(b) Concentration of ore
(c) Conversion of ore to oxide
(d) Dressing of ore
(e) Refining of ore
Arrange the following general metallurgical processes in their proper order.
(a) Reduction of ore
(b) Concentration of ore
(c) Conversion of ore to oxide
(d) Dressing of ore
(e) Refining of ore
The correct option is C dbcae
Explanation for the correct option:
Metallurgy is a term that refers to the process of extracting metals in their purest form.
The steps involved in the extaration of metal are:
(d) Dressing of ore: The initial step in metal extraction is dressing of ore.
Impurities such as soil and sand contaminate ore obtained from the earth.
Dressing simply refers to removing as much undesirable rocky material as possible before the ore is transformed to metal.
(b) Concentration of ore: Concentration of ore also known as ore enrichment, is the process of removing gangue particles from ore to increase the amount of metal in the ore. The processes used to remove impurities from ores are determined by the differences in physical or chemical properties of the ore and the impurities.
(c) Conversion of ore to oxide: Conversion of ore to oxide is the third step of metallurgy in which the carbonate or sulphide ore is Calcinated or Roasted.
(a) Reduction of ore: The roasted to the calcinated ore is then reduced to the metal by using a suitable reducing agent like Coke (), Carbon monoxide (), etc.
(e) Refining of ore: The metal obtained from the above processes are impure metal i.e., crude metal. The crude metal is then purified which is known as refining.
So, the correct order is dbcae.
Therefore, the correct option is (C).
dbcae
Explanation for the correct option:
Metallurgy is a term that refers to the process of extracting metals in their purest form.
The steps involved in the extaration of metal are:
(d) Dressing of ore: The initial step in metal extraction is dressing of ore.
Impurities such as soil and sand contaminate ore obtained from the earth.
Dressing simply refers to removing as much undesirable rocky material as possible before the ore is transformed to metal.
(b) Concentration of ore: Concentration of ore also known as ore enrichment, is the process of removing gangue particles from ore to increase the amount of metal in the ore. The processes used to remove impurities from ores are determined by the differences in physical or chemical properties of the ore and the impurities.
(c) Conversion of ore to oxide: Conversion of ore to oxide is the third step of metallurgy in which the carbonate or sulphide ore is Calcinated or Roasted.
(a) Reduction of ore: The roasted to the calcinated ore is then reduced to the metal by using a suitable reducing agent like Coke (), Carbon monoxide (), etc.
(e) Refining of ore: The metal obtained from the above processes are impure metal i.e., crude metal. The crude metal is then purified which is known as refining.
So, the correct order is dbcae.
Therefore, the correct option is (C).
