Chemistry · 2023
JEE Main · 30 January 2023, Shift 2 · Q35
Given below are two statements: Statement I: During Electrolytic refining, the pure metal is made to act as anode and its impure metallic form is…
Given below are two statements:
Statement I: During Electrolytic refining, the pure metal is made to act as anode and its impure metallic form is used as cathode.Statement II: During the Hall-Heroult electrolysis process, purified $\displaystyle \mathrm{Al}_2 \mathrm{O}_3$ is mixed with $\displaystyle \mathrm{Na}_3 \mathrm{AlF}_6$ to lower the melting point of the mixture.In the light of the above statements, choose the most appropriate answer from the options given below:
Official answer
From NTA’s final answer key for this paper.
(1)
Statement I is incorrect but Statement II is correct
More from Metallurgy
- The major component of which of the following ore is sulphide based mineral?2023
- Which of the following metals can be extracted through alkali leaching technique?2023
- Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: In an Ellingham diagram, the…2023
- In the extraction of copper, its sulphide ore is heated in a reverberatory furnace after mixing with silica to:2023
- Given below are two statements: Statement I: In the metallurgy process, sulphide ore is converted to oxide before reduction. Statement II: Oxide ores…2023
- Which one of the following reactions does not occur during extraction of copper?2023
- The methods NOT involved in concentration of ore are A. Liquation B. Leaching C. Electrolysis D. Hydraulic washing E. Froth floatation Choose the…2023
- In the extraction process of copper, the product obtained after carrying out the reactions (i) 2 Cu_2 S+3 O_2 → 2 Cu_2 O+2 SO_2 (ii) 2 Cu_2 O+Cu_2 S…2023
JEE Main 2023 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.