CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
320966
Chemical leaching is useful in the concentration of:
1 Copper pyrites
2 Bauxite
3 Magnetite
4 Calamine
Explanation:
Conceptual Questions
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
320967
The common impurity present in bauxite is
1 \(\mathrm{\mathrm{CuO}}\)
2 \(\mathrm{\mathrm{ZnO}}\)
3 \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}}\)
4 \(\mathrm{\mathrm{Cr}_{2} \mathrm{O}_{3}}\)
Explanation:
Alluminium is mainly isolated from bauxite ore which is generally contaminated with ferric oxide and silica
KCET - 2018
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
320968
What is the significance of leaching in the extraction of aluminium?
1 Aluminium is extracted easily
2 Impurities get precipitated which helps in concentration of bauxite ore.
3 It is one of the method employed for extraction of metals.
4 Bauxite precipitates leaving impurities in the solution.
Explanation:
Leaching is significant as it helps in removing the impurities like \(\mathrm{\mathrm{SiO}_{2}, \mathrm{Fe}_{2} \mathrm{O}_{3}}\), etc. from the bauxite ore.
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
320969
Extraction of gold and silver involves leaching the metal with \(\mathrm{\mathrm{CN}^{-}}\)ion. The metal is recovered by
1 Displacement of metal by some other metal from the complex ion.
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
320966
Chemical leaching is useful in the concentration of:
1 Copper pyrites
2 Bauxite
3 Magnetite
4 Calamine
Explanation:
Conceptual Questions
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
320967
The common impurity present in bauxite is
1 \(\mathrm{\mathrm{CuO}}\)
2 \(\mathrm{\mathrm{ZnO}}\)
3 \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}}\)
4 \(\mathrm{\mathrm{Cr}_{2} \mathrm{O}_{3}}\)
Explanation:
Alluminium is mainly isolated from bauxite ore which is generally contaminated with ferric oxide and silica
KCET - 2018
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
320968
What is the significance of leaching in the extraction of aluminium?
1 Aluminium is extracted easily
2 Impurities get precipitated which helps in concentration of bauxite ore.
3 It is one of the method employed for extraction of metals.
4 Bauxite precipitates leaving impurities in the solution.
Explanation:
Leaching is significant as it helps in removing the impurities like \(\mathrm{\mathrm{SiO}_{2}, \mathrm{Fe}_{2} \mathrm{O}_{3}}\), etc. from the bauxite ore.
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
320969
Extraction of gold and silver involves leaching the metal with \(\mathrm{\mathrm{CN}^{-}}\)ion. The metal is recovered by
1 Displacement of metal by some other metal from the complex ion.
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
320966
Chemical leaching is useful in the concentration of:
1 Copper pyrites
2 Bauxite
3 Magnetite
4 Calamine
Explanation:
Conceptual Questions
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
320967
The common impurity present in bauxite is
1 \(\mathrm{\mathrm{CuO}}\)
2 \(\mathrm{\mathrm{ZnO}}\)
3 \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}}\)
4 \(\mathrm{\mathrm{Cr}_{2} \mathrm{O}_{3}}\)
Explanation:
Alluminium is mainly isolated from bauxite ore which is generally contaminated with ferric oxide and silica
KCET - 2018
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
320968
What is the significance of leaching in the extraction of aluminium?
1 Aluminium is extracted easily
2 Impurities get precipitated which helps in concentration of bauxite ore.
3 It is one of the method employed for extraction of metals.
4 Bauxite precipitates leaving impurities in the solution.
Explanation:
Leaching is significant as it helps in removing the impurities like \(\mathrm{\mathrm{SiO}_{2}, \mathrm{Fe}_{2} \mathrm{O}_{3}}\), etc. from the bauxite ore.
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
320969
Extraction of gold and silver involves leaching the metal with \(\mathrm{\mathrm{CN}^{-}}\)ion. The metal is recovered by
1 Displacement of metal by some other metal from the complex ion.
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
320966
Chemical leaching is useful in the concentration of:
1 Copper pyrites
2 Bauxite
3 Magnetite
4 Calamine
Explanation:
Conceptual Questions
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
320967
The common impurity present in bauxite is
1 \(\mathrm{\mathrm{CuO}}\)
2 \(\mathrm{\mathrm{ZnO}}\)
3 \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}}\)
4 \(\mathrm{\mathrm{Cr}_{2} \mathrm{O}_{3}}\)
Explanation:
Alluminium is mainly isolated from bauxite ore which is generally contaminated with ferric oxide and silica
KCET - 2018
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
320968
What is the significance of leaching in the extraction of aluminium?
1 Aluminium is extracted easily
2 Impurities get precipitated which helps in concentration of bauxite ore.
3 It is one of the method employed for extraction of metals.
4 Bauxite precipitates leaving impurities in the solution.
Explanation:
Leaching is significant as it helps in removing the impurities like \(\mathrm{\mathrm{SiO}_{2}, \mathrm{Fe}_{2} \mathrm{O}_{3}}\), etc. from the bauxite ore.
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
320969
Extraction of gold and silver involves leaching the metal with \(\mathrm{\mathrm{CN}^{-}}\)ion. The metal is recovered by
1 Displacement of metal by some other metal from the complex ion.
