Chemical formula of bleaching powder is ______.

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SSC CGL 2022 Tier-I Official Paper (Held On : 07 Dec 2022 Shift 4)
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  1. CaOCl2
  2. CaO
  3. CaCO3
  4. Ca(OH)2

Answer (Detailed Solution Below)

Option 1 : CaOCl2
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Detailed Solution

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The correct answer is CaOCl2

Key Points

  • The chemical name of the bleaching powder is calcium hypochlorite.
  • Bleaching powder is a pale yellowish powder existing with a strong smell of chlorine.
  • It is soluble in water but due to the presence of impurities, we never observe a clear solution.
  • Its chemical formula is CaOCl2.
  •  with its chemical name Calcium hypochlorite.

Additional InformationCalcium bicarbonate

  • Calcium bicarbonate also called calcium hydrogen carbonate.
  • It has a chemical formula Ca(HCO3)2.

Sodium chloride

  • Sodium chloride, commonly known as salt, is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions.

2) CaO:

This is the formula for calcium oxide, commonly known as quicklime or burnt lime. It is a white, caustic, alkaline crystalline solid that is mainly used in making cement and mortar, and for treating soil due to its alkalinity.

 
3) CaCO3:
This is the chemical formula for calcium carbonate. Calcium carbonate is a common substance found in rocks as the minerals calcite and aragonite, and it is the main component of pearls and the shells of marine organisms, snails, and eggs.
 
4) Ca(OH)2:
This is the formula for calcium hydroxide. It is also known as slaked lime or lime water. It is used in the food industry, specifically to process water during the sugarcane and corn sweetener production. It's also used in sewage treatment to raise the pH of the sewage to allow for the sedimentation of organic impurities, to sterilize the sewage, and to help control odors. Furthermore, it plays an important role in construction, where it is used in making mortar or plaster.
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