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Saturday, 31 October

JEE Main 2021 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 22 July 2021, Shift 2, Chemistry Q34

Question 34 of 90 in this shift, Chemistry question 4 of 30, Section A.

Which one of the following statements for D.I. Mendeleeff, is incorrect ?
  1. (1)He authored the textbook - Principles of Chemistry.
  2. (2)He invented accurate barometer.
  3. (3)At the time, he proposed Periodic Table of elements structure of atom was known.Official answer
  4. (4)Element with atomic number 101 is named after him.

Official answer

Option 3

NTA final key.

Chapter
Classification of Elements and Periodicity in Properties
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.