state the chemical property in each case on which following usesofbaking soda are based (i) as an antacid (ii) as a constituent of baking powder

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Solution

In antacid it acts as a base and neutralise the acid that is extra created on the stomach.
HCl + NaHCO₃------> NaCl + H₂O + CO₂
on adding water to bicarbonate, the liberation of carbondioxide (in the form of carbonic acid) makes the foaming to occur. This is the chemistry behind the baking powder.
NaHCO₃ + H₂O ----> NaOH + H₂CO₃

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