Medium
In the electrolytic process of extraction of aluminum,what is used as the electrolyte?
- A$Al(OH)_3$ in $NaOH$ solution
- B$Al_2(SO_4)_3$ aqueous solution
- CMolten mixture of $Al_2O_3$ and $Na_3AlF_6$
- DMolten mixture of $Al_2O_3$ and $Al(OH)_3$
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Similar Questions
Low grade $Cu$ ores are available and $Zn$ and $Fe$ scraps are also available. Which scrap among the two would be more suitable for reducing the leached $Cu$ ore (economically)?
Medium
View SolutionThe reactions which occur in a blast furnace at $500-800 \ K$ during the extraction of iron from haematite are:
$(i)$ $3 Fe_2O_3 + CO \rightarrow 2 Fe_3O_4 + CO_2$
$(ii)$ $Fe_2O_3 + 3 C \rightarrow 2 Fe + 3 CO$
$(iii)$ $Fe_3O_4 + 4 CO \rightarrow 3 Fe + 4 CO_2$
$(iv)$ $Fe_2O_3 + CO \rightarrow 2 FeO + CO_2$
$(i)$ $3 Fe_2O_3 + CO \rightarrow 2 Fe_3O_4 + CO_2$
$(ii)$ $Fe_2O_3 + 3 C \rightarrow 2 Fe + 3 CO$
$(iii)$ $Fe_3O_4 + 4 CO \rightarrow 3 Fe + 4 CO_2$
$(iv)$ $Fe_2O_3 + CO \rightarrow 2 FeO + CO_2$
In which of the following metallurgical processes is no external reducing agent required?
Easy
View SolutionWhen a metal is to be extracted from its ore,if the gangue associated with the ore is silica,then
Medium
View SolutionMatte is a mixture of .......... .
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