alleryStart learning →Bleaching powder is produced by the action of chlorine on
Adry slaked lime
Bquick lime solution
Csodium hydroxide
Dsodium chloride
Answer & Solution
Correct answer: A. dry slaked lime
1. Bleaching powder is calcium oxychloride, CaOCl₂.
2. It is made by passing chlorine over **dry slaked lime**, Ca(OH)₂: Ca(OH)₂ + Cl₂ → CaOCl₂ + H₂O.
3. It is used for bleaching and disinfecting water.
_Source: Karnataka SSLC (KSEEB) Class 10 Science, Ch2 'Acids, Bases and Salts', §2.4 (salts)_
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