Question

What is baking powder? How does it make the cake soft and spongy?​

Answer 1

(a) Baking powder is a mixture of baking soda and tartaric acid. When mixed with water the sodium hydrogen carbonate(baking soda) reacts with tartaric acid, as a result, carbon dioxide gas is liberated. This carbon dioxide is trapped in wet dough and bubbles out slowly making the cake soft and spongy.

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Answer 2

Answer:

Baking powder is a mixture of baking soda and tartaric acid. When mixed with water the sodium hydrogen carbonate(baking soda) reacts with tartaric acid, as a result, carbon dioxide gas is liberated. This carbon dioxide is trapped in wet dough and bubbles out slowly making the cake soft and spongy.