Question

Sodium carbonate is known by the common name of .

• A. washing soda
• B. baking soda
• C. caustic soda

Answer 1

The correct option is A washing soda

The common name of sodium carbonate($N{a}_{2}C{O}_3$) is washing soda.
One common source of washing soda is the ashes of burned plants; for this reason, it is sometimes called soda ash.

The common names of $NaHC{O}_3$ and $NaOH$ are baking soda and caustic soda respectively.