Official Answer Key & Detailed Solution
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Correct Answer: Option (C) — Mustard gas
Concept & Option Breakdown
Standard Reference VerifiedMustard gas (sulfur mustard, bis(2-chloroethyl) sulfide) was extensively deployed as a devastating blistering chemical weapon during World War I.
Mustard gas is the classic blister agent (vesicant) historically infamous for its large-scale use in trench warfare in WWI.
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