Q44 of 270 Page 97

Name the substance obtained by the action of chlorine on solid (dry) slaked lime.

When calcium hydroxide (slaked lime) reacts with chlorine, it gives calcium oxychloride (bleaching powder).


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Name one compound of calcium which is used for removing the colour of a coloured cloth.

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State a peculiar (or remarkable) property of plaster of Paris.

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What is gypsum? What happens when gypsum is heated to 100°C (373 K)?

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Name a sodium compound which is used for making borax and glass.