Which one of the following statement(s) is/are true about Ca(OH)2?
A
It is used in the preparation of bleaching powder
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B
It is a light blue solid
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C
It is used in chromatography
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D
Its solution in water is called lime water
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Solution
The correct options are A It is used in the preparation of bleaching powder D Its solution in water is called lime water Calcium hydroxide reacts with chlorine to form bleaching powder(CaOCl2).
Ca(OH)2+Cl2→CaOCl2+H2O.
The mixture calcium hydroxide and water is called lime water.