Question

What happens when sodium bicarbonate reacts with dilute hydrochloric acid? How will we check the
presence of gas evolved from the reaction mixture? Explain with the help of equations.

Answer 1

Answer:

NaHCO3+HCI->NaCI+H2O+CO2

CO2 gas can be checked by passing it through lime water.On passing lime water will be milky due to the formation of precipitate of calcium carbonate.

Ca(OH)2+CO2->CaCO3+H2O

Hope it helps...