Why does cake become fluffy after adding baking soda
On adding baking soda to the cake batter, it would undergo thermal decomposition due to the heat trapped in the batter. Thus, the following reaction takes place :- 2NaHCO3 (s) ----> Na2CO3 (aq) + CO2 (g) + H2O (l). The CO2 evolved makes the cake fluffy.
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