Baking soda is chemically known as:
- Sodium carbonate
- Sodium bicarbonate
- Sodium hydroxide
- Sodium chloride
Answer: Sodium bicarbonate
Baking soda is NaHCO₃ (sodium hydrogen carbonate). It releases CO₂ when heated or mixed with acid, causing dough to rise. Common household chemical with exam relevance. [[NCERT Chemistry Class 10]]