Question

when an organic compound is heated with cupric oxide,a gas X and H20 produced as a result. when the gas X is passed through the lime water, it turns the lime water into milky. when it passed in the excess the milky colour disappears. By the litmus solution it is found that the gas X is acidic in naturr.The gas X is ?plzz hlp​

Answer 1

Gas X is Carbon dioxide (CO2)

CaO(lime water) + CO2 ------> CaCO3 (calcium carbonate)