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Friday, 9 October

JEE Main Chemistry · General Principles and Processes of Isolation of Elements

Metallurgical Extraction in JEE Main

Metallurgical Extraction (Chemistry, General Principles and Processes of Isolation of Elements) came 11 times in 10 of the 42 JEE Main shifts Lumi analysed, across 8 distinct ideas. 0 of them came in 2024–26; it was last asked in 2023.

Questions
11
in 10 shifts
Ideas asked
8
2 asked more than once
Numerical answer
0
0% of its questions
Pattern
Comes in cycles
rarely asked since 2024
Questions each year
0240’172’204’213’222’230’240’250’26

In the shifts Lumi analysed for each year.

Difficulty and format
Easy 8Medium 3Hard 0

Format

  • Single correct9 Q
  • Assertion–reason1 Q
  • Other1 Q
Ideas inside the topic
8 ideas
Where it sits

Part of General Principles and Processes of Isolation of Elements, which had 14 questions in all. Metallurgical Extraction accounts for 79% of them. In Lumi's JEE taxonomy it belongs to Inorganic Chemistry.

Every question

All 11 Metallurgical Extraction questions

Newest first, each with its options and official answer.

  1. 8 Apr 2023, Shift 2 · Q65In Hall - Heroult process, the following is used for reducing Al2O3\mathrm{Al_2O_3} :-EasySingle correct
  2. 11 Apr 2023, Shift 1 · Q65In the extraction process of copper, the product obtained after carrying out the reactions (i)…EasySingle correct
  3. 25 Jul 2022, Shift 1 · Q67The compound(s) that is(are) removed as slag during the extraction of copper is : (A) CaO\mathrm{CaO} (B) FeO\mathrm{FeO} (C)…MediumOther
  4. 28 Jul 2022, Shift 1 · Q66Which of the reaction is suitable for concentrating ore by leaching process ?EasySingle correct
  5. 29 Jun 2022, Shift 1 · Q67In isolation of which one of the following metals from their ores, the use of cyanide salt is not commonly involved ?MediumSingle correct
  6. 3 Aug 2021, Shift 2 · Q34Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A : Fluoride based compound…EasyAssertion–reason
  7. 25 Jul 2021, Shift 1 · Q34In the leaching of alumina from bauxite, the ore expected to leach out in the process by reacting with NaOH is :EasySingle correct
  8. 16 Mar 2021, Shift 2 · Q34Which of the following reduction reaction CANNOT be carried out with coke ?EasySingle correct
  9. 18 Mar 2021, Shift 1 · Q35The chemical that is added to reduce the melting point of the reaction mixture during the extraction of aluminium is :EasySingle correct
  10. 6 Sep 2020, Shift 2 · Q33The element that can be refined by distillation is :EasySingle correct
  11. 6 Sep 2020, Shift 2 · Q42For a reaction, 4 M(s)+nO2(g)→2M2On(s)4\,\mathrm{M(s)}+n\mathrm{O_2(g)}\rightarrow 2\mathrm{M_2O_n(s)}, the free energy change is plotted as a function of…MediumSingle correct