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A sanitary worker uses a white substance to clean water tanks. The substance has a strong smell of chlorine. The substance is-

A sanitary worker uses a white substance to clean water tanks. The substance has a strong smell of chlorine. The substance is- Correct Answer Bleaching powder

Bleaching powder has the chemical formula CaOCl2 which is used as a sanitizing agent.

When bleaching powder is exposed to air, it gives a smell of chlorine. This is because bleaching powder reacts with carbon dioxide from the atmosphere to produce calcium carbonate and chlorine.

CaOCl2 + CO2 → Cl2 + CaCO3

Uses: 

  • It is used in the textile industry to bleach cotton and linen.
  • It is also used for bleaching wood pulp in the paper industry and in laundry to bleach washed clothes.
  • Sanitary worker uses it to clean water tanks.
  • It is used in many chemical industries as an oxidizing agent. 

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