This chapter is currently out of syllabus
1
JEE Main 2023 (Online) 30th January Evening Shift
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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 $\mathrm{Al}_{2} \mathrm{O}_{3}$ is mixed with $\mathrm{Na}_{3} \mathrm{AlF}_{6}$ 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:
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 $\mathrm{Al}_{2} \mathrm{O}_{3}$ is mixed with $\mathrm{Na}_{3} \mathrm{AlF}_{6}$ 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:
2
JEE Main 2023 (Online) 30th January Morning Shift
MCQ (Single Correct Answer)
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-1
Out of Syllabus
In the extraction of copper, its sulphide ore is heated in a reverberatory furnace after mixing with silica to:
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JEE Main 2023 (Online) 29th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The major component of which of the following ore is sulphide based mineral?
4
JEE Main 2023 (Online) 29th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The reaction representing the Mond process for metal refining is _________.
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