Baking powder is used in the preparation of breads and cakes?

Yes, baking powder is commonly used as a leavening agent in the preparation of breads, cakes, and various baked goods. Baking powder consists of baking soda (sodium bicarbonate), an acid ingredient, and cornstarch or another inert substance. When baking powder is added to a batter or dough, the combination of the baking soda and the acid component reacts with the moisture, releasing carbon dioxide gas. This gas creates tiny bubbles within the batter or dough, causing it to rise and become light and fluffy during the baking process. Baking powder is usually preferred over baking soda when a recipe contains acidic ingredients, as the acidity helps to activate the leavening reaction.