The chemical formula of washing soda is _______.

Question

Question

This question was previously asked in

SSC GD Constable (2022) Official Paper (Held On : 02 Feb 2023 Shift 1)

Answer 1

The correct answer is Na2CO3. 10H2O.

Key Points

Washing soda is a white crystalline powder that is used in laundry detergents and as a water softener.
- The chemical formula of washing soda is Na₂CO₃.10H₂O, which means it contains two sodium atoms, one carbon atom, three oxygen atoms, and ten water molecules.
Ca(OH)₂ is calcium hydroxide, which is used in construction, as a flocculant in wastewater treatment, and as a food additive.
Na₂SO₄ is sodium sulfate, which is used in the manufacture of detergents, glass, and paper, as well as in the textile and leather industries.
NaHCO₃ is sodium bicarbonate, which is used as a leavening agent in baking and as an antacid to treat heartburn.

Additional Information

Sodium Carbonate is the chemical name for ‘washing soda’ (Na2CO3.10H2O.).
It is the water-soluble sodium salt of carbonic acid.
It is well known domestically for its everyday use as a water softener.
Washing soda is produced using Solvay's process.
The process includes the reaction of Sodium Chloride with ammonia, and carbon dioxide, in water.
Carbon Dioxide is produced through calcium carbonate from which calcium oxide that gets left is used in ammonia recovery from ammonium chloride.
- NaHCO3 is Sodium Bicarbonate.