NEET UG 2018 · Chemistry · Question 78
NEET 2018 Chemistry, question 78
Question 78 of the NEET 2018 paper (code AA) 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 CBSE official answer key gives option 3.
Updated 2026-10-08
Q78 · Chemistry
In which case is the number of molecules of water maximum ?
- 10.00224 L of water vapours at 1 atm and 273 K
- 20.18 g of water
- 318 mL of waterOfficial answer
- 4 mol of water
Official answer: option 3 · CBSE official 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
- 2020 Q123Which one of the followings has maximum number of atoms ?Numerical · 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.