Which among the following statement(s) is(are) true for the extraction of aluminium from bauxite?
$(A)$ Hydrated $Al _2 O _3$ precipitates, when $CO _2$ is bubbled through a solution of sodium aluminate.
$(B)$ Addition of $Na _3 AlF _6$ lowers the melting point of alumina.
$(C)$ $CO _2$ is evolved at the anode during electrolysis.
$(D)$ The cathode is a steel vessel with a lining of carbon.
Which among the following statement(s) is(are) true for the extraction of aluminium from bauxite?
$(A)$ Hydrated $Al _2 O _3$ precipitates, when $CO _2$ is bubbled through a solution of sodium aluminate.
$(B)$ Addition of $Na _3 AlF _6$ lowers the melting point of alumina.
$(C)$ $CO _2$ is evolved at the anode during electrolysis.
$(D)$ The cathode is a steel vessel with a lining of carbon.
- [IIT 2020]
- A
$A,B,C$
- B
$A,B,C,D$
- C
$A,B$
- D
$A,C$
Similar Questions
In the extraction of aluminium, bauxite is dissolved in cryolite because
In the extraction of aluminium, bauxite is dissolved in cryolite because
In electrolysis of aluminium oxide which of the following is added to accelerate the process
In electrolysis of aluminium oxide which of the following is added to accelerate the process
In the reaction ${B_2}{O_3} + C + C{l_2} \to A + CO.$ The $A$ is
In the reaction ${B_2}{O_3} + C + C{l_2} \to A + CO.$ The $A$ is
Identify the reaction which does not liberate hydrogen
Identify the reaction which does not liberate hydrogen
- [JEE MAIN 2016]
Which one is a pseudo alum
Which one is a pseudo alum