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Saturday, 31 October

JEE Main 2022 · ChemistryMultiple choiceTwo statementsMediumRecall

JEE Main 25 June 2022, Shift 2, Chemistry Q67

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

Given below are two statements. Statement I: During electrolytic refining, blister copper deposits precious metals. Statement II: In the process of obtaining pure copper by electrolysis method, copper blister is used to make the anode. In the light of the above statements, choose the correct answer from the options given below.
  1. (1)Both Statement I and Statement II are true.Official answer
  2. (2)Both Statement I and Statement II are false.
  3. (3)Statement I is true but Statement II is false.
  4. (4)Statement I is false but Statement II is true.

Official answer

Option 1

NTA final key.

Chapter
General Principles and Processes of Isolation of Elements
Topic
Metallurgical Extraction
Idea tested
Metal Refining Techniques

Same idea in other shifts

Asked 6× in all
  1. 13 Apr 2023, Shift 1 · Q65Which one of the following is most likely a mismatch ?MediumSingle correct
  2. 27 Jul 2022, Shift 1 · Q67Which of the following methods are not used to refine any metal? A. Liquation B. Calcination C. Electrolysis D. Leaching E. Distillation…EasyOther
  3. 25 Feb 2021, Shift 2 · Q35The method used for the purification of Indium is :EasySingle correct
  4. 18 Mar 2021, Shift 2 · Q35Match List - I with List - II : List - I List - II (a) Mercury (i) Vapour phase refining (b) Copper (ii) Distillation Refining (c) Silicon…EasyMatch the list
  5. 4 Sep 2020, Shift 1 · Q33Among statements (a) - (d), the correct ones are : (a) Lime stone is decomposed to CaO during the extraction of iron from its oxides. (b)…MediumOther

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.