In electrolytic reduction of Al2O3 we use cryolite to increase conductivity and decrease melting point. Cryolyte is Na3AIF6, Oxidation number of Al is +3
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Aluminium is extracted…
JEE Main 2021 — Chemistry Organic Chemistry
2021mcqmedium
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 :
Official previous-year question
Held on 31 Aug 2021 · Verified 6 Jul 2026.
Options
- A
Both (A) and (R) are correct and (R) is the correct explanation of (A).
- B
(A) is true but (R) is false.
- C
Both (A) and (R) are correct but (R) is not the correct explanation of (A).
- D
(A) is false but (R) is true.
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