A white solid is used to decolourise colour from fabric. It is also used to disinfect water.Identify white solid Give its method of preparation
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BrainlyYoda Genius
It is bleaching powder.
Chemical name-Calcium oxychloride
Formula-CaOCl₂
It is produced by action of chlorine on dry slaked lime.
Equation- Ca(OH)2 + Cl2 → CaOCl2 + H2O
Used for washing some clothes.
b)(i)NaOH + HNO3 → NaNO3 + H2O(Salt name- Sodium nitrate)
(ii)2KOH + H2SO4 → K2SO4 + 2H2O(Salt name-Potassium sulphate)
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Answer: the white solid which is used to decolorize clothes and also used as a disinfectant for water is bleaching powder.
the process by which bleaching powder is prepared is given below,
as during the chlor-alkali process the chlorine which is obtained is treated with calcium hydroxide and further it gives bleaching powder and water.
Ca(OH)2 + Cl2 -> CaOCl2 + H2O
I hope my answer will help you
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