GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Bleaching powder is made from-
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Sulphur dioxide and gypsum
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Lime and Chlorine
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Soda ash and lime
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Chlorine and Charcoal
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Explanation:
Detailed explanation-1: -Bleaching powder is produced by the reaction of calcium hydroxide with chlorine. Calcium hydroxide is also known as slaked lime. When chlorine gas is passed over the dry slaked lime thus bleaching powder and water is produced.
Detailed explanation-2: -You pass chlorine gas through dry slaked lime and you get calcium oxychloride or bleaching powder.
Detailed explanation-3: -Note: Bleaching powder is also called chlorine powder, chloride of lime or chlorinated lime. The other chemical name is Calcium hypochlorite. It is a white powder with odour of chlorine. It is a strong Oxidizing agent.
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