Question

how is carbon dioxide gas produced in the laboratory

Answer 1

here is ur answer

HERE IS LABORATORY PREPARATION OF CARBON DIOXIDE

method:

place some marble chips in the woulf bottle.

add dilute hydrochloric acid to the marble chips with the help of thistle funnel

the narrow end of the thistle funnel should touch the bottom of the flask

the chemical reaction woll take place leading to the formation of carbon dioxide gas...

CaCO3 + 2HCL-------> CaCl2 + H2O+CO2