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Gases

3 PYQ across 2 exams · 2018–2025 — the complete chronological timeline of how UPSC has tested this idea, oldest to newest.

CDS 2018 → CAPF 2022
20181 PYQ
CDSQ4
Which of the following characteristics is common to hydrogen, nitrogen, oxygen and carbon dioxide?…
20221 PYQ
CAPFQ29
Which of the following makes bread soft and spongy when baking soda is added?…
20251 PYQ
CDSQ54
Which one of the following gas is used in making soft drinks ?…
Related concepts — explore their timelines too
States of MatterChemical reactions
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