A white powder is added while baking cakes to make it soft and spongy. Name its main ingredients. Explain the function of each ingredient. Write the chemical reaction taking place when the powder is heated during baking.
A white powder is baking powder that is added while baking breads and cakes to make them soft and fluffy.
Its ingredients are baking soda (NaHCO3) and tartaric acid (C4H6O6).
On heating or mixing with water, sodium bicarbonate reacts with hydrogen ions from acid and releases CO2 that makes the cake soft and fluffy.
Tartaric acid is used to avoid the bitter taste by reacting with Na2CO3 formed.
The chemical equation is given below:
$NaHCO_3 + H^+\xrightarrow{heat\ from\ acid} Na_2CO_3 + H_2O + CO_2$
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