Medium
Which of the following sulphides,when heated strongly in air,gives the corresponding metal?
- A$Cu_2S$
- B$CuS$
- C$Fe_2S_3$
- D$HgS$
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Choose the correct code regarding the Roasting process.
$I$. It is the process of heating ore in air to obtain the oxide.
$II$. It is an exothermic process.
$III$. It is used for hydrated oxide and oxysalt ore.
$IV$. It is used after the concentration of ore.
$I$. It is the process of heating ore in air to obtain the oxide.
$II$. It is an exothermic process.
$III$. It is used for hydrated oxide and oxysalt ore.
$IV$. It is used after the concentration of ore.
Medium
View SolutionThe mixture obtained from the roasting of copper pyrites is ......... .
Medium
View SolutionSelect the correct statement:
The processes of calcination and roasting in metallurgical industries,respectively,can lead to :-
The role of calcination in metallurgical operations is
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