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Friday, 9 October

JEE Main 2024 · ChemistryMultiple choiceSingle correctMediumRecall

JEE Main 29 January 2024, Shift 1, Chemistry Q71

Question 71 of 90 in this shift, Chemistry question 11 of 30, Section A.

Appearance of blood red colour, on treatment of the sodium fusion extract of an organic compound with FeSO4\mathrm{FeSO_4} in presence of concentrated H2SO4\mathrm{H_2SO_4} indicates the presence of element/s
  1. (1)N
  2. (2)S
  3. (3)N and SOfficial answer
  4. (4)Br

Official answer

Option 3

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