Easy
What is the reduction of $Cr_2O_3$ by heating it with aluminum called?
- ASmelting
- BRoasting
- CCalcination
- DAluminothermic process
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In the metallurgical extraction of copper,the following reaction is used:
$FeO + SiO_{2} \rightarrow FeSiO_{3}$
$FeO$ and $FeSiO_{3}$ respectively are:
$FeO + SiO_{2} \rightarrow FeSiO_{3}$
$FeO$ and $FeSiO_{3}$ respectively are:
In which of the following metallurgy,self-reduction is not possible?
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View SolutionAluminum is obtained from alumina $(Al_2O_3)$ by the electrolysis of a molten mixture of:
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View SolutionExtraction of metal from the ore cassiterite involves
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