Question

What is the common name of CaOCl₂?

1. Baking Soda
2. Bleaching Powder
3. Washing Soda
4. Baking Powder

Answer 1

Correct Answer - Option 2 : Bleaching Powder

The correct answer is Bleaching Powder.

• Bleaching Powder is the common name of Ca(OCl)₂.

• Bleaching Powder:
  • It is chemically Ca (OCl)Cl or Ca(OCl)₂.
  • Its chemical name is Calcium hypochlorite.
  • The chemical equation of its formation is:
    • Ca(OH)2+ Cl2 → CaOCl2 + H2O
  • Uses:
    • It is used for bleaching dirty clothes
    • as a bleaching agent for cotton and linen in the textile industry.
    • as a disinfectant for drinking water and in the manufacture of chloroform.
    • as a strong oxidizing agent

• Baking soda is sodium hydrogen carbonate.
  • Its formula is NaHCO₃.
  • It is used as a mild antiseptic for skin infections
  • And in soda-acids and as fire extinguishers
• Washing Soda:
  • Its chemical name is sodium carbonate decahydrate
  • Its formula is Na₂CO₃.10H₂O.
  • It is used in glass, soap, and paper industries and for removing the permanent hardness of the water.