JEE Main 2022 · ChemistryMultiple choiceOtherMediumRecall

JEE Main 25 July 2022, Shift 1, Chemistry Q67

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

The compound(s) that is(are) removed as slag during the extraction of copper is : (A)

\mathrm{CaO}

(B)

\mathrm{FeO}

(C)

\mathrm{Al_2O_3}

(D)

\mathrm{ZnO}

(E)

\mathrm{NiO}

Choose the correct answer from the options given below :

(1)(C), (D) only
(2)(A), (B), (E) only
(3)(A), (B) only
(4)(B) onlyOfficial answer

Official answer

Option 4

NTA final key (2022 Session 2).

Chapter: General Principles and Processes of Isolation of Elements
Topic: Metallurgical Extraction
Idea tested: Bessemerization of Copper

Same topic in other shifts

All Metallurgical Extraction questions

8 Apr 2023, Shift 2 · Q65In Hall - Heroult process, the following is used for reducing $\mathrm{Al_2O_3}$ :-EasySingle correct
11 Apr 2023, Shift 1 · Q65In the extraction process of copper, the product obtained after carrying out the reactions (i)…EasySingle correct
28 Jul 2022, Shift 1 · Q66Which of the reaction is suitable for concentrating ore by leaching process ?EasySingle correct
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
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
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

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 42 of the 174 JEE Main shifts held from 2017 to 2026.