(a) What is the common name of sodium hydrogencarbonate?(b) What happens when a solution of sodium hydrogencarbonate is heated? Write the equation of the reaction involved.
(c) Explain why, sodium hydrogencarbonate is used as an antacid.


(a) The common name of sodium hydrogen carbonate is baking soda.

(b) When a solution of sodium hydrogen carbonate is heated, it decomposes to give sodium carbonate and carbon dioxide gas is evolved.
The reaction is written as:
$2NaHCO_3 → Na_2CO_3 +  CO_2 + H_2O$

(c) Sodium hydrogen carbonate is used as an antacid because it neutralizes the excess acid present in the stomach and helps to get relief from indigestion.

Updated on: 10-Oct-2022

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