JEE Main 2021 — Alcohols Phenols and Ethers Question with Solution
JEE Main 2021 (31 Aug Shift 1)
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 with cryolite.
Reason (R) : The oxidation state of in cryolite is
In the light of the above statements, choose the most appropriate answer from the options given below :
Assertion (A) : Aluminium is extracted from bauxite by the electrolysis of molten mixture of with cryolite.
Reason (R) : The oxidation state of in cryolite is
In the light of the above statements, choose the most appropriate answer from the options given below :
Choose an option
Show full solutionCorrect option: C
Correct answer
CBoth (A) and (R) are correct but (R) is not the correct explanation of (A).
Step-by-step explanation
In electrolytic reduction of we use cryolite to increase conductivity and decrease melting point. Cryolyte is Oxidation number of is
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This is a previous-year question from JEE Main 2021, covering the Alcohols Phenols and Ethers chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.