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Saturday, 31 October

JEE Main 2021 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 4 August 2021, Shift 1, Chemistry Q42

Question 42 of 90 in this shift, Chemistry question 12 of 30, Section A.

In Carius method of halogen estimation, the halogen containing compound is heated with
  1. (1)sodium element followed by addition of water.
  2. (2)fuming HNO3\mathrm{HNO_3} in the presence of silver nitrate.Official answer
  3. (3)barium chloride solution.
  4. (4)ammonia and ammonium molybdate

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.