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Saturday, 31 October

JEE Main 2022 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 26 July 2022, Shift 1, Chemistry Q64

Question 64 of 90 in this shift, Chemistry question 4 of 30, Section A.

Refining using liquation method is the most suitable for metals with :
  1. (1)Low melting pointOfficial answer
  2. (2)High boiling point
  3. (3)High electrical conductivity
  4. (4)Less tendency to be soluble in melts than impurities

Official answer

Option 1

NTA final key.

Chapter
General Principles and Processes of Isolation of Elements
Topic
Metallurgical Extraction
Idea tested
Liquation Refining Principle

Same idea in other shifts

Asked 3× in all
  1. 29 Jul 2022, Shift 2 · Q66In liquation process used for tin (Sn), the metalEasySingle correct
  2. 27 Aug 2021, Shift 1 · Q36Which refining process is generally used in the purification of low melting metals ?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.