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प्रश्न
Which of the following is treated with chlorine to obtain bleaching powder?
विकल्प
CaSO4
Ca(OH)2
Mg(OH)2
KOH
MCQ
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उत्तर
Ca(OH)2
Explanation:
Bleaching powder is manufactured by passing chlorine gas (Cl2) over dry slaked lime, which is chemically known as calcium hydroxide [(Ca(OH)2)]. The industrial reaction yields calcium oxychloride, commonly called bleaching powder (CaOCl2), along with water. The balanced chemical equation representing this entire production process is:
\[\ce{Ca(OH)2 + Cl2 -> CaOCl2 + H2O}\]
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