Question

how baking soda is prepared by washing soda ? give reaction

Answer 1

Baking soda is prepaed by passing carbon dioxide through an aqueous solution of sodium carbonate
Reaction:-
Na2Co3 plus Co2 plus H2O is equal to 2NaHCO3

Answer 2

BAKING SODA  IS PREPARED FROM WASHING SODA IN THE FOLLOWING WAY:-

NaCl +NH3 + CO2 + H2O -------> NaHCO3 + NH4CL

IT  IS PREPARED BY REACTING COLD CONCENTRATED SODIUM CHLORIDE SOLUTION ALSO CALLED BRINE SOLUTION WITH AMMONIA AND CARBON DIOXIDE .

HOPE IT IS HELPFUL.......