Question

A compound of sodium, 'X', is a white powder and an important component of baking pow-

der. When 'X' is heated, a gas 'Y' is produced that turns lime water milky.


(i) Write the chemical equation for the reaction which takes place on heating.


(ii) Why is 'X' used as an antacid?

Answer 1

X- NaHCO3(baking soda) Y- CO2 (Carbon dioxide)

(i) 2NaHCO3 -------------> Na2CO3 + H2O + CO2
(heat)

(ii) It is used in antacids as, being alkaline, it neutralizes excess acids in the stomach and provides relief.

Answer 2

Hello friend,
X=NaHCO3(Sodium hydrogen carbonate)
Y=CO2
(I) 2NaHCO3 -------->Na2CO3+H2O+CO2
(ii) being alkaline, it neutralises excess acid in stomach and provides relief.
hope it helps