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Which one of the following compounds is used as washing soda?

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Which one of the following compounds is used as washing soda?
1. Sodium Sulphate
2. Sodium Carbonate
3. Calcium Sulphate
4. Calcium Carbonate
5. None of the above/More than one of the above
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Correct Answer - Option 2 : Sodium Carbonate

The correct option is Sodium Carbonate.

  • Sodium Carbonate is also known as washing soda it is a salt of carbonic acid.
  • Sodium carbonate can be manufactured by Solvay's process.
  • It is used for treating hard water and industrial detergent mixtures.
  • The aqueous solution of sodium carbonate is alkaline.
  • Calcium Sulphate exists in the forms of white solids and is not soluble in water.
  • Plaster of Paris and Gypsum are its hydrates.
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