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Friday, 9 October

NEET UG 2020 · Chemistry · Question 123

NEET 2020 Chemistry, question 123

Question 123 of the NEET 2020 paper (code E1) is a Chemistry question from Some Basic Concepts of Chemistry. Its idea, Mole-Mass-Particle Conversions, was asked 3 times, in 2018, 2020 and 2024, across NEET 2017–2026. The NTA final answer key gives option 4.

Updated 2026-10-08

Q123 · Chemistry

Which one of the followings has maximum number of atoms ?

  1. 11 g of Ag(s) [Atomic mass of Ag = 108]
  2. 21 g of Mg(s) [Atomic mass of Mg = 24]
  3. 31 g of O2(g)\mathrm{O_2(g)} [Atomic mass of O = 16]
  4. 41 g of Li(s) [Atomic mass of Li = 7]Official answer

Official answer: option 4 · NTA final answer key

Same idea

Mole-Mass-Particle Conversions, in other papers

NEET asked this idea 3 times, in 2018, 2020 and 2024. The other 2 questions below.

  • 2024 Q78The highest number of helium atoms is inOne-line MCQ · Easy
  • 2018 Q78In which case is the number of molecules of water maximum ?One-line MCQ · Easy

Mole-Mass-Particle Conversions: every question and how it was framed

The chapter

Some Basic Concepts of Chemistry in ten years of NEET

14 questions from 2017–2026, asked in 9 of 10 papers, about 1.3 a paper. Mole Concept alone had 14.

Some Basic Concepts of Chemistry: questions per paper

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