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Atomic theory

4 PYQ across 2 exams · 2015–2025 — the complete chronological timeline of how UPSC has tested this idea, oldest to newest.

CDS 2015 → NDA 2023
20152 PYQs
CDSQ32
The atomic theory of matter was first proposed by…
CDSQ32
Who among the following proposed that atom is indivisible ?…
20231 PYQ
NDAQ116
As proposed by Dalton, which of the following symbol represents phosphorus ?…
20251 PYQ
CDSQ58
Which one of the following is not explained by the Dalton's atomic theory ?…
Related concepts — explore their timelines too
John Dalton
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