Medium
In the Hall-Heroult process,which of the following is used for reducing $Al_2O_3$?
- AGraphite
- BMagnesium
- C$Na_3AlF_6$
- D$CaF_2$
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Similar Questions
Which of the following is used to reduce magnetite $(Fe_3O_4)$ to obtain iron?
Easy
View SolutionStatement $(A)$ $Mg$ can reduce $Al_2O_3$ above $1350^{\circ} C$.
Statement $(B)$ $Al$ can reduce $MgO$ below $1350^{\circ} C$.
The correct answer is
Statement $(B)$ $Al$ can reduce $MgO$ below $1350^{\circ} C$.
The correct answer is
The Ellingham diagram of a certain metal $M$ is represented in the figure. The points $A$ and $B$ respectively correspond to:
Easy
View SolutionWhich one of the following is used in the extraction of aluminium by the electrolytic process?
Medium
View SolutionUpon heating with $Cu_2S$,the reagent$(s)$ that give copper metal is/are:
$(A)$ $CuFeS_2$
$(B)$ $CuO$
$(C)$ $Cu_2O$
$(D)$ $CuSO_4$
$(A)$ $CuFeS_2$
$(B)$ $CuO$
$(C)$ $Cu_2O$
$(D)$ $CuSO_4$
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