Extraction of Metals by Electrometallurgy
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CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321009 Bauxite, the ore of aluminium, is purified by which process?

1 Hoope's process
2 Hall's process
3 Mond's process
4 Liquation process
MHTCET - 2018
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321010 Which of the following chemical reactions represents Hall - Heroult process?

1 \(\mathrm{\mathrm{Cr}_{2} \mathrm{O}_{3}+2 \mathrm{Al} \rightarrow \mathrm{Al}_{2} \mathrm{O}_{3}+2 \mathrm{Cr}}\)
2 \(\mathrm{2 \mathrm{Al}_{2} \mathrm{O}_{3}+3 \mathrm{C} \rightarrow 4 \mathrm{Al}+3 \mathrm{CO}_{2}}\)
3 \(\mathrm{\mathrm{FeO}+\mathrm{CO} \rightarrow \mathrm{Fe}+\mathrm{CO}_{2}}\)
4 \({\rm{2}}\left[ {{\rm{Au(CN}}{{\rm{)}}_{\rm{2}}}} \right]_{{\rm{(aq)}}}^{\rm{ - }}{\rm{ + Zn(s)}} \to {\rm{2Au(s) + }}{\left[ {{\rm{Zn(C}}{{\rm{N}}_{\rm{4}}}{\rm{)}}} \right]^{{\rm{2 - }}}}\)
JEE - 2022
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321011 Which technique is used in the manufacture of aluminium from bauxite?

1 Reduction with magnesium
2 Reduction with coke
3 Electrolytic reduction
4 Reduction with iron
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321012 What will happen, if anode is made of nickel instead of graphite in the extraction of aluminium from \(\mathrm{\mathrm{AlCl}_{3}}\) ?

1 Nickel will be affected by high temperature
2 Nickel will combine with \(\mathrm{\mathrm{Cl}_{2}}\)
3 Nickel is insulator
4 All of these
NEET DIGITAL LIBRARY
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321009 Bauxite, the ore of aluminium, is purified by which process?

1 Hoope's process
2 Hall's process
3 Mond's process
4 Liquation process
MHTCET - 2018
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321010 Which of the following chemical reactions represents Hall - Heroult process?

1 \(\mathrm{\mathrm{Cr}_{2} \mathrm{O}_{3}+2 \mathrm{Al} \rightarrow \mathrm{Al}_{2} \mathrm{O}_{3}+2 \mathrm{Cr}}\)
2 \(\mathrm{2 \mathrm{Al}_{2} \mathrm{O}_{3}+3 \mathrm{C} \rightarrow 4 \mathrm{Al}+3 \mathrm{CO}_{2}}\)
3 \(\mathrm{\mathrm{FeO}+\mathrm{CO} \rightarrow \mathrm{Fe}+\mathrm{CO}_{2}}\)
4 \({\rm{2}}\left[ {{\rm{Au(CN}}{{\rm{)}}_{\rm{2}}}} \right]_{{\rm{(aq)}}}^{\rm{ - }}{\rm{ + Zn(s)}} \to {\rm{2Au(s) + }}{\left[ {{\rm{Zn(C}}{{\rm{N}}_{\rm{4}}}{\rm{)}}} \right]^{{\rm{2 - }}}}\)
JEE - 2022
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321011 Which technique is used in the manufacture of aluminium from bauxite?

1 Reduction with magnesium
2 Reduction with coke
3 Electrolytic reduction
4 Reduction with iron
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321012 What will happen, if anode is made of nickel instead of graphite in the extraction of aluminium from \(\mathrm{\mathrm{AlCl}_{3}}\) ?

1 Nickel will be affected by high temperature
2 Nickel will combine with \(\mathrm{\mathrm{Cl}_{2}}\)
3 Nickel is insulator
4 All of these
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CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321009 Bauxite, the ore of aluminium, is purified by which process?

1 Hoope's process
2 Hall's process
3 Mond's process
4 Liquation process
MHTCET - 2018
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321010 Which of the following chemical reactions represents Hall - Heroult process?

1 \(\mathrm{\mathrm{Cr}_{2} \mathrm{O}_{3}+2 \mathrm{Al} \rightarrow \mathrm{Al}_{2} \mathrm{O}_{3}+2 \mathrm{Cr}}\)
2 \(\mathrm{2 \mathrm{Al}_{2} \mathrm{O}_{3}+3 \mathrm{C} \rightarrow 4 \mathrm{Al}+3 \mathrm{CO}_{2}}\)
3 \(\mathrm{\mathrm{FeO}+\mathrm{CO} \rightarrow \mathrm{Fe}+\mathrm{CO}_{2}}\)
4 \({\rm{2}}\left[ {{\rm{Au(CN}}{{\rm{)}}_{\rm{2}}}} \right]_{{\rm{(aq)}}}^{\rm{ - }}{\rm{ + Zn(s)}} \to {\rm{2Au(s) + }}{\left[ {{\rm{Zn(C}}{{\rm{N}}_{\rm{4}}}{\rm{)}}} \right]^{{\rm{2 - }}}}\)
JEE - 2022
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321011 Which technique is used in the manufacture of aluminium from bauxite?

1 Reduction with magnesium
2 Reduction with coke
3 Electrolytic reduction
4 Reduction with iron
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321012 What will happen, if anode is made of nickel instead of graphite in the extraction of aluminium from \(\mathrm{\mathrm{AlCl}_{3}}\) ?

1 Nickel will be affected by high temperature
2 Nickel will combine with \(\mathrm{\mathrm{Cl}_{2}}\)
3 Nickel is insulator
4 All of these
For More Updates join with Us
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CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321009 Bauxite, the ore of aluminium, is purified by which process?

1 Hoope's process
2 Hall's process
3 Mond's process
4 Liquation process
MHTCET - 2018
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321010 Which of the following chemical reactions represents Hall - Heroult process?

1 \(\mathrm{\mathrm{Cr}_{2} \mathrm{O}_{3}+2 \mathrm{Al} \rightarrow \mathrm{Al}_{2} \mathrm{O}_{3}+2 \mathrm{Cr}}\)
2 \(\mathrm{2 \mathrm{Al}_{2} \mathrm{O}_{3}+3 \mathrm{C} \rightarrow 4 \mathrm{Al}+3 \mathrm{CO}_{2}}\)
3 \(\mathrm{\mathrm{FeO}+\mathrm{CO} \rightarrow \mathrm{Fe}+\mathrm{CO}_{2}}\)
4 \({\rm{2}}\left[ {{\rm{Au(CN}}{{\rm{)}}_{\rm{2}}}} \right]_{{\rm{(aq)}}}^{\rm{ - }}{\rm{ + Zn(s)}} \to {\rm{2Au(s) + }}{\left[ {{\rm{Zn(C}}{{\rm{N}}_{\rm{4}}}{\rm{)}}} \right]^{{\rm{2 - }}}}\)
JEE - 2022
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321011 Which technique is used in the manufacture of aluminium from bauxite?

1 Reduction with magnesium
2 Reduction with coke
3 Electrolytic reduction
4 Reduction with iron
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

321012 What will happen, if anode is made of nickel instead of graphite in the extraction of aluminium from \(\mathrm{\mathrm{AlCl}_{3}}\) ?

1 Nickel will be affected by high temperature
2 Nickel will combine with \(\mathrm{\mathrm{Cl}_{2}}\)
3 Nickel is insulator
4 All of these
NEET DIGITAL LIBRARY