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Saturday, 31 October

JEE Main 2023 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 15 April 2023, Shift 1, Chemistry Q80

Question 80 of 90 in this shift, Chemistry question 20 of 30, Section A.

Which of the following statement is correct for paper chromatography?
  1. (1)Paper sheet forms the stationary phase.
  2. (2)Water present in the pores of the paper forms the stationary phase.Official answer
  3. (3)Paper and water present in its pores together form the stationary phase.
  4. (4)Water present in the mobile phase gets absorbed by the paper which then forms the stationary phase.

Official answer

Option 2

NTA final key.

Chapter
Organic Chemistry: Some Basic Principles and Techniques
Topic
No close match in our taxonomy
Idea tested
No close match in our taxonomy

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.