Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ — decoded step-by-step.
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Q · Metals and Non-MetalsMedium · 45s
Which non-metal is stored underwater?
TopicMetals and Non-Metals
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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White phosphorus is kept underwater to prevent ignition.
Final Answer: Option B — Phosphorus