On adding acetic acid to soild sodium hydrogen carbonate, a student observes the liberation of a (A) greenish yellow gas with pungent smell. (b) colourless and odourless gas.(C) yellow coloured, odourless gas, (d) colourless gas with smell of rotten eggs.
Reaction of acetic acid with sodium hydrogen carbonates takes place withthe evolutionof carbon dioxide gas. CO2is a colourless and odourless gas. The following chemical reaction takes place.
CH3COOH + NaHCO3 → CH3COONa + CO2 + H2O