NEET UG 2025 · Chemistry · Question 54
NEET 2025 Chemistry, question 54
Question 54 of the NEET 2025 paper (code 45) is a Chemistry question from Some Basic Concepts of Chemistry. Its idea, Laws of Chemical Combination, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 4.
Updated 2026-10-08
Q54 · Chemistry
Dalton's Atomic theory could not explain which of the following?
- 1Law of conservation of mass
- 2Law of constant proportion
- 3Law of multiple proportion
- 4Law of gaseous volumeOfficial answer
Official answer: option 4 · NTA final answer key
Same idea
The only question on Laws of Chemical Combination
No other NEET paper from 2017–2026 tested this exact idea.
Laws of Chemical Combination: 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.