Page 3 - 3.LESSON NOTES (CH-2 BAKING SODA)

 Uses Of Baking Soda-
1. Baking soda is used for cleaning sinks and basins because of its cleaning
properties.
(alkaline in nature).
2. It helps in tackling acidity
(Mild Base).
3. It is also used in fire extinguishers, because it manages to produce a foam
which helps in dousing flames.
(Sodium hydrogen carbonate reacts with the acid {H2SO4} to produce
carbon dioxide gas which helps in extinguishing fire) .
4. It is used to raise the dough for baking purposes.
(Sodium hydrogen carbonate liberates carbon dioxide gas on being
heated, which helps in raising the dough.)
5. Used to prepare Baking Powder.
(Sodium hydrogen carbonate is mixed with a mild edible acid like
Tartaric Acid to make Baking powder).
a. When Baking soda is heated, sodium carbonate is produced
which is a strong base and bitter in taste.
Tartaric acid reacts with sodium carbonate to form sodium tartrate which
is neutral and the bitterness is reduced.
b. Presence of Tartaric acid helps in the release of carbon
dioxide gas which helps in raising the dough.

Preparation of baking powder

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