Chemistry - Complete s-block Question with Solution | TestHub

According to the equation,$\text{Ca}{(\text{OH})}_2+{\text{CO}}_2\stackrel{\text{Δ}}{\to }{\text{CaCO}}_3+{\text{H}}_2\text{O}$
${\text{CaCO}}_3+{\text{H}}_2\text{O}+{\text{CO}}_2\to \text{Ca}{({\text{HCO}}_3)}_2$
$\text{Ca}{({\text{HCO}}_3)}_2\stackrel{\text{Δ}}{\to }\text{CaO}+{\text{H}}_2\text{O}+2{\text{CO}}_2$
Hence, the gas$\mathrm{A}$and$\mathrm{B}$are$\mathrm{C}{\mathrm{O}}_2$and$\mathrm{C}{\mathrm{O}}_2$respectively