Quiz: UPPSC Prelims 2025 (GS Paper I)
Category: UP PSC (PCS)
Question 43 of 150
UPPSC Prelims 2025 (GS Paper I)
28%
Which of the following gases is/are lighter than air?
1. Hydrogen chloride
2. Sulfur dioxide
3. Helium
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Tags:
General Science
18 Oct 2025
ยท
20 Oct 2025
This MCQ is part of the UP PSC Previous Year Questions (PYQs) series, focusing on UPPSC Prelims 2025 (GS Paper I)