Q.

Sodium Carbonate is commonly known as -

A. Baking Soda
B. Washing Soda
C. Caustic Soda
D. Caustic Potash
Answer» B. Washing Soda
Explanation: Sodium carbonate (Na2CO3) is also known as washing soda, soda ash and soda crystals. It is a salt of carbonic acid, a chemical that produces a wide range of salts collectively known as carbonates. It can be used to remove stubborn stains from laundry.
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