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General Principles and processes of Isolation of Elements
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$2CuFeS_2 + O_2 \to Cu_2S + 2FeS + SO_2$
Which process of metallurgy of copper is represented by above equation?
A
Concentration
B
Roasting
C
Reduction
D
Purification
(AIIMS-2017)
Solution
Roasting is the process in which the ore in strongly heated in the presence of excess air.
In the extraction of copper consequent to crushing and concentration of the ore, it is heated in a reverberatary furnace.
Copper pyrites is oxidised and a part of sulphur in the ore is removed as sulphur dioxide.
$2 CuFeS _2+ O _2 \rightarrow Cu _2 S +2 FeS + SO _2$
Copper pyrites
Standard 12
Chemistry
Similar Questions
Match List$-I$ and List|$-II.$
|
List$-I$ (Metal) |
List$-II$ (Ores) |
||
| $(a)$ |
Aluminium |
$(i)$ | Siderite |
| $(b)$ | Copper | $(ii)$ | Calamine |
| $(c)$ | Norethindrone | $(iii)$ | Kaolinite |
| $(d)$ | Zinc | $(iv)$ |
Malachite |
Choose the correct answer from the options given below:
