Solved UPSC CDS/OTA Question
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Q · Acids, Bases and SaltsMedium · 45s
Bleaching powder is prepared by the reaction of chlorine with:
TopicAcids, Bases and Salts
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Bleaching powder = Ca(OCl)₂; formed by passing chlorine over dry slaked lime [Ca(OH)₂].
Final Answer: Option C - Dry slaked lime