Question

A compound X of sodium forms a white powder . it is a constituent of backing powder and is used in some antacid prescriptions . when heated , X gives out of a gas and steam . the gas forms a white precipitate with lime water . write the chemical formula and name of X and the chemical equestionfor its decomposition on heating . whta is its role in antacid and in backing soda .

Answer 1

NaHCo3 upon heating gives
NaOH+H2O+CO2
Co2 turns lime water milky
antacid helps in digestion
backing soda helps in making pakoras crispy