Quiz: UPPSC Prelims 2013 (GS Paper I)

Category: UP PSC (PCS)

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Question 123 of 150

UPPSC Prelims 2013 (GS Paper I)
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Which one of the following gases is used for the purification of drinking water?

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23 Aug 2025 · 18 Oct 2025

This MCQ is part of the UP PSC Previous Year Questions (PYQs) series, focusing on UPPSC Prelims 2013 (GS Paper I)

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