Assertion (A) : Aluminium is extracted from bauxite by the electrolysis of molten mixture of Al2O3 with cryolite.

Question

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). 

Assertion (A) : Aluminium is extracted from bauxite by the electrolysis of molten mixture of Al₂O₃ with cryolite. 

Reason (R) : The oxidation state of Al in cryolite is +3. In the light of the above statements, choose the most appropriate answer from the options given below : 

(1) (A) is true but (R) is false 

(2) (A) is false but (R) is true. 

(3) Both (A) and (R) are correct and (R) is the correct explanation of (A) 

(4) Both (A) and (R) are correct but (R) is not the correct explanation of (A)

Answer 1

Answer is (4) Both (A) and (R) are correct but (R) is not the correct explanation of (A)

(A) Aluminium is reactive metal so Aluminium is extracted by electrolysis of Alumina with molten mixture of Cryolite 

(B) Cryolite, Na₃AlF₆ 

Here Al is in +3 O.S. 

So Answer is 4