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

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Solution

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

(b) When a solution of sodium hydrogen carbonate is heated, then it decomposes to give sodium carbonate with the evolution of carbon dioxide gas.

Reaction: $2 N a H C O_{3} H e a t - -- \to N a_{2} C O_{3} + C O_{2} + H_{2} O$

(c) Sodium hydrogen carbonate is used as an antacid because it neutralises the excess acid present in the stomach and relieves indigestion.

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

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