Easy
What is the purpose of adding $Na_3AlF_6$ to $Al_2O_3$ during electrolysis?
- ATo lower the melting point of $Al_2O_3$
- BTo decrease the conductivity of the electrolyte
- CTo provide a reducing environment
- DTo increase the conductivity of the electrolyte
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Similar Questions
In the extraction of aluminium,the electrolyte used is:
Copper can be extracted by hydrometallurgy but not zinc. Explain.
Medium
View Solution$FeCr_2O_4$ (chromite) is converted to $Cr$ by following steps:
Chromite $\xrightarrow{I} Na_2CrO_4$ $\xrightarrow{II} Cr_2O_3$ $\xrightarrow{III} Cr$
Reagents in $I, II$ and $III$ steps might be:
$I$ Step $-$ $II$ Step $-$ $III$ Step
Chromite $\xrightarrow{I} Na_2CrO_4$ $\xrightarrow{II} Cr_2O_3$ $\xrightarrow{III} Cr$
Reagents in $I, II$ and $III$ steps might be:
$I$ Step $-$ $II$ Step $-$ $III$ Step
Describe the process of obtaining blister copper.
Difficult
View SolutionIn the extraction of iron from its ore,the slag produced in the blast furnace is a mixture of......?
Easy
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