The chemical formula of washing soda is

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The chemical formula of washing soda is

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NaHCO₃
Na₂CO₃
Na₂CO₃·10H₂O
NaOCl
This question was previously asked in
UPSC CISF-AC-EXE – 2024
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Washing soda is the common name for hydrated sodium carbonate. Its chemical formula is Na₂CO₃·10H₂O, which represents sodium carbonate decahydrate. This compound is widely used as a cleaning agent and in various industrial processes.
Washing soda is chemically known as sodium carbonate decahydrate (Na₂CO₃·10H₂O).
Option A, NaHCO₃, is the chemical formula for baking soda (sodium bicarbonate). Option B, Na₂CO₃, is anhydrous sodium carbonate, also known as soda ash. Option D, NaOCl, is the chemical formula for sodium hypochlorite, the main ingredient in many household bleaches.

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