CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321000
Name the process that is employed to refine aluminium.
1 Hall's process
2 Mond's process
3 Hoope's process
4 Serperck's process
Explanation:
Aluminium is refined by Hoope's process. This process contains, carbon electrodes, which are used as cathode and iron tank linked with carbon bricks as anode. The electrolyte contains three layers (1) Bottom layer is made by using impure aluminium (2) A molten mixture of fluorides of sodium \(\mathrm{\left(\mathrm{Na}_{3} \mathrm{~A} l \mathrm{~F}_{6}\right), \mathrm{Ba}}\) and \(\mathrm{\mathrm{A} l}\) and \(\mathrm{\mathrm{Al}_{2} \mathrm{O}_{3}}\) is used to make middle layer,. (3) At the top, there is a layer of pure molten aluminium. When electric current is passed pure aluminium metal is deposited at cathode from the middle layer and an equivalent amount of \(\mathrm{\mathrm{A} l}\) moves from bottom layer to middle layer leaving behind the impuritites.
MHTCET - 2017
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321001
Serpeck's method involved the heating of bauxite with
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321002
How many of the following species are related to Hall's process of purification of bauxite? White bauxite, \({\mathrm{\mathrm{Na}_{2} \mathrm{CO}_{3}, \mathrm{CO}_{2}}}\), cryolite, red bauxite, NaOH
1 2
2 4
3 3
4 6
Explanation:
\({\mathrm{\mathrm{Na}_{2} \mathrm{CO}_{3}, \mathrm{CO}_{2}}}\) and red bauxite are related to Hall's process of purification of bauxite.
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321003
In the Hoope's process for refining of aluminium, the fused materials form three different layers and they remain separated during electrolysis also. This is because
1 The upper layer is kept attracted by the cathode and the lower layer is kept attracted by the anode
2 There is special arrangement in the cell to keep the layers separate
3 The 3 layers have different densities
4 The 3 layers are maintained at different temperatures
Explanation:
Conceptual Questions
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321004
Which of the following mixture is used in the electrolysis of aluminium?
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321000
Name the process that is employed to refine aluminium.
1 Hall's process
2 Mond's process
3 Hoope's process
4 Serperck's process
Explanation:
Aluminium is refined by Hoope's process. This process contains, carbon electrodes, which are used as cathode and iron tank linked with carbon bricks as anode. The electrolyte contains three layers (1) Bottom layer is made by using impure aluminium (2) A molten mixture of fluorides of sodium \(\mathrm{\left(\mathrm{Na}_{3} \mathrm{~A} l \mathrm{~F}_{6}\right), \mathrm{Ba}}\) and \(\mathrm{\mathrm{A} l}\) and \(\mathrm{\mathrm{Al}_{2} \mathrm{O}_{3}}\) is used to make middle layer,. (3) At the top, there is a layer of pure molten aluminium. When electric current is passed pure aluminium metal is deposited at cathode from the middle layer and an equivalent amount of \(\mathrm{\mathrm{A} l}\) moves from bottom layer to middle layer leaving behind the impuritites.
MHTCET - 2017
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321001
Serpeck's method involved the heating of bauxite with
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321002
How many of the following species are related to Hall's process of purification of bauxite? White bauxite, \({\mathrm{\mathrm{Na}_{2} \mathrm{CO}_{3}, \mathrm{CO}_{2}}}\), cryolite, red bauxite, NaOH
1 2
2 4
3 3
4 6
Explanation:
\({\mathrm{\mathrm{Na}_{2} \mathrm{CO}_{3}, \mathrm{CO}_{2}}}\) and red bauxite are related to Hall's process of purification of bauxite.
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321003
In the Hoope's process for refining of aluminium, the fused materials form three different layers and they remain separated during electrolysis also. This is because
1 The upper layer is kept attracted by the cathode and the lower layer is kept attracted by the anode
2 There is special arrangement in the cell to keep the layers separate
3 The 3 layers have different densities
4 The 3 layers are maintained at different temperatures
Explanation:
Conceptual Questions
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321004
Which of the following mixture is used in the electrolysis of aluminium?
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321000
Name the process that is employed to refine aluminium.
1 Hall's process
2 Mond's process
3 Hoope's process
4 Serperck's process
Explanation:
Aluminium is refined by Hoope's process. This process contains, carbon electrodes, which are used as cathode and iron tank linked with carbon bricks as anode. The electrolyte contains three layers (1) Bottom layer is made by using impure aluminium (2) A molten mixture of fluorides of sodium \(\mathrm{\left(\mathrm{Na}_{3} \mathrm{~A} l \mathrm{~F}_{6}\right), \mathrm{Ba}}\) and \(\mathrm{\mathrm{A} l}\) and \(\mathrm{\mathrm{Al}_{2} \mathrm{O}_{3}}\) is used to make middle layer,. (3) At the top, there is a layer of pure molten aluminium. When electric current is passed pure aluminium metal is deposited at cathode from the middle layer and an equivalent amount of \(\mathrm{\mathrm{A} l}\) moves from bottom layer to middle layer leaving behind the impuritites.
MHTCET - 2017
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321001
Serpeck's method involved the heating of bauxite with
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321002
How many of the following species are related to Hall's process of purification of bauxite? White bauxite, \({\mathrm{\mathrm{Na}_{2} \mathrm{CO}_{3}, \mathrm{CO}_{2}}}\), cryolite, red bauxite, NaOH
1 2
2 4
3 3
4 6
Explanation:
\({\mathrm{\mathrm{Na}_{2} \mathrm{CO}_{3}, \mathrm{CO}_{2}}}\) and red bauxite are related to Hall's process of purification of bauxite.
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321003
In the Hoope's process for refining of aluminium, the fused materials form three different layers and they remain separated during electrolysis also. This is because
1 The upper layer is kept attracted by the cathode and the lower layer is kept attracted by the anode
2 There is special arrangement in the cell to keep the layers separate
3 The 3 layers have different densities
4 The 3 layers are maintained at different temperatures
Explanation:
Conceptual Questions
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321004
Which of the following mixture is used in the electrolysis of aluminium?
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CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321000
Name the process that is employed to refine aluminium.
1 Hall's process
2 Mond's process
3 Hoope's process
4 Serperck's process
Explanation:
Aluminium is refined by Hoope's process. This process contains, carbon electrodes, which are used as cathode and iron tank linked with carbon bricks as anode. The electrolyte contains three layers (1) Bottom layer is made by using impure aluminium (2) A molten mixture of fluorides of sodium \(\mathrm{\left(\mathrm{Na}_{3} \mathrm{~A} l \mathrm{~F}_{6}\right), \mathrm{Ba}}\) and \(\mathrm{\mathrm{A} l}\) and \(\mathrm{\mathrm{Al}_{2} \mathrm{O}_{3}}\) is used to make middle layer,. (3) At the top, there is a layer of pure molten aluminium. When electric current is passed pure aluminium metal is deposited at cathode from the middle layer and an equivalent amount of \(\mathrm{\mathrm{A} l}\) moves from bottom layer to middle layer leaving behind the impuritites.
MHTCET - 2017
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321001
Serpeck's method involved the heating of bauxite with
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321002
How many of the following species are related to Hall's process of purification of bauxite? White bauxite, \({\mathrm{\mathrm{Na}_{2} \mathrm{CO}_{3}, \mathrm{CO}_{2}}}\), cryolite, red bauxite, NaOH
1 2
2 4
3 3
4 6
Explanation:
\({\mathrm{\mathrm{Na}_{2} \mathrm{CO}_{3}, \mathrm{CO}_{2}}}\) and red bauxite are related to Hall's process of purification of bauxite.
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321003
In the Hoope's process for refining of aluminium, the fused materials form three different layers and they remain separated during electrolysis also. This is because
1 The upper layer is kept attracted by the cathode and the lower layer is kept attracted by the anode
2 There is special arrangement in the cell to keep the layers separate
3 The 3 layers have different densities
4 The 3 layers are maintained at different temperatures
Explanation:
Conceptual Questions
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321004
Which of the following mixture is used in the electrolysis of aluminium?
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321000
Name the process that is employed to refine aluminium.
1 Hall's process
2 Mond's process
3 Hoope's process
4 Serperck's process
Explanation:
Aluminium is refined by Hoope's process. This process contains, carbon electrodes, which are used as cathode and iron tank linked with carbon bricks as anode. The electrolyte contains three layers (1) Bottom layer is made by using impure aluminium (2) A molten mixture of fluorides of sodium \(\mathrm{\left(\mathrm{Na}_{3} \mathrm{~A} l \mathrm{~F}_{6}\right), \mathrm{Ba}}\) and \(\mathrm{\mathrm{A} l}\) and \(\mathrm{\mathrm{Al}_{2} \mathrm{O}_{3}}\) is used to make middle layer,. (3) At the top, there is a layer of pure molten aluminium. When electric current is passed pure aluminium metal is deposited at cathode from the middle layer and an equivalent amount of \(\mathrm{\mathrm{A} l}\) moves from bottom layer to middle layer leaving behind the impuritites.
MHTCET - 2017
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321001
Serpeck's method involved the heating of bauxite with
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321002
How many of the following species are related to Hall's process of purification of bauxite? White bauxite, \({\mathrm{\mathrm{Na}_{2} \mathrm{CO}_{3}, \mathrm{CO}_{2}}}\), cryolite, red bauxite, NaOH
1 2
2 4
3 3
4 6
Explanation:
\({\mathrm{\mathrm{Na}_{2} \mathrm{CO}_{3}, \mathrm{CO}_{2}}}\) and red bauxite are related to Hall's process of purification of bauxite.
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321003
In the Hoope's process for refining of aluminium, the fused materials form three different layers and they remain separated during electrolysis also. This is because
1 The upper layer is kept attracted by the cathode and the lower layer is kept attracted by the anode
2 There is special arrangement in the cell to keep the layers separate
3 The 3 layers have different densities
4 The 3 layers are maintained at different temperatures
Explanation:
Conceptual Questions
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321004
Which of the following mixture is used in the electrolysis of aluminium?