Q. The formula of baking soda ais:

Correct Answer: d) NaHCO3

Explanation:

Baking soda is chemically known as sodium bicarbonate, and its chemical formula is NaHCO3. It is a white crystalline compound that is commonly used in baking as a leavening agent. When it reacts with acids (like vinegar or lemon juice), it releases carbon dioxide gas, which helps dough rise.

– a) KHCO3: This is potassium bicarbonate, not baking soda.

– b) Na2CO3: This is sodium carbonate, also known as washing soda, which is different from baking soda.

– c) K2CO3: This is potassium carbonate, not related to baking soda.

– d) NaHCO3: This is the correct formula for baking soda.

Thus, the correct answer is d) NaHCO3.