Baking powder is a mixture of baking soda (sodium hydrogen carbonate) and __________?

Option 1 -> Acetic acid is found in vinegar and can react with baking soda, but is not used in commercial baking powder.

Option 2 -> Citric acid can be used as an acidic component in some baking powders, but is less common than tartaric acid.

Option 3 -> Tartaric acid is the primary acid used in baking powder, providing controlled CO₂ release when combined with baking soda and moisture.

Option 4 -> Oxalic acid is toxic and unsuitable for use in food products like baking powder.

Hence, Option 3 (Tartaric Acid) -> Baking powder is specifically formulated as a mixture of sodium hydrogen carbonate (baking soda) and tartaric acid (or its salts), which work together as a leavening agent by producing carbon dioxide gas when mixed with moisture and heat, causing baked goods to rise -> correct