Question

Amongst baking soda, caustic soda and washing soda, carbonate anion is present in

• A. Washing soda only
• B. Washing soda and caustic soda only
• C. Washing soda and baking soda only
• D. Baking soda, caustic soda and washing soda

Answer 1

Answer: (A)

Washing soda only

Answer 2

The correct answer is (A) : Washing soda only
$CO^{2-}_3$
ion is present only in washing soda.
Baking soda → $NaHCO_3$
Washing soda →$Na_2CO_3.10H_2O$
Caustic soda →NaOH