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Saturday, 31 October

JEE Main 2022 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 28 June 2022, Shift 2, Chemistry Q67

Question 67 of 90 in this shift, Chemistry question 7 of 30, Section A.

In the metallurgical extraction of copper, following reaction is used : FeO+SiO2→FeSiO3\mathrm{FeO + SiO_2 \rightarrow FeSiO_3} FeO\mathrm{FeO} and FeSiO3\mathrm{FeSiO_3} respectively are.
  1. (1)gangue and flux.
  2. (2)flux and slag.
  3. (3)slag and flux.
  4. (4)gangue and slag.Official answer

Official answer

Option 4

NTA final key.

Chapter
General Principles and Processes of Isolation of Elements
Topic
Metallurgical Extraction
Idea tested
Acidic vs Basic Flux Selection

Same topic in other shifts

All Metallurgical Extraction questions
  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. 11 Apr 2023, Shift 2 · Q65Given below are two statements : Statement I : In the metallurgy process, sulphide ore is converted to oxide before reduction. Statement…EasyTwo statements
  4. 12 Apr 2023, Shift 1 · Q66Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A : In the Ellingham…MediumAssertion–reason
  5. 13 Apr 2023, Shift 1 · Q65Which one of the following is most likely a mismatch ?MediumSingle correct
  6. 15 Apr 2023, Shift 1 · Q65Which one of the following is not an example of calcination?EasySingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.