In the leaching of alumina from bauxite,the ore impurity expected to leach out in the process by reacting with $NaOH$ is:
- A$TiO_{2}$
- B$SiO_{2}$
- C$Fe_{2}O_{3}$
- D$ZnO$
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Similar Questions
Magnetic separation is used for increasing the concentration of which of the following ores?
Easy
View SolutionWhich of the following is not concentrated by electromagnetic separation?
Easy
View SolutionThe complex formed when $Al_2O_3$ is leached from Bauxite using concentrated $NaOH$ solution is,
Select the correct option regarding the method of separating two sulfide ores by the froth flotation process.
$(1)$ The ratio of water and oil is chosen appropriately.
$(2)$ Some depressants are used for this process.
$(3)$ $HCN$ is a depressant for a mixture of $ZnS$ and $PbS$.
$(4)$ By using a suitable depressant for a mixture of $ZnS$ and $PbS$,only $PbS$ comes up with the froth.
$(1)$ The ratio of water and oil is chosen appropriately.
$(2)$ Some depressants are used for this process.
$(3)$ $HCN$ is a depressant for a mixture of $ZnS$ and $PbS$.
$(4)$ By using a suitable depressant for a mixture of $ZnS$ and $PbS$,only $PbS$ comes up with the froth.
Easy
View SolutionThe ore which is concentrated by leaching is:
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