Give one method for industrial preparation and one for laboratory preparation of $CO$ and $CO_2$ each.

(N/A) Laboratory preparation of carbon dioxide:
Calcium carbonate reacts with dil $HCl$ to form carbon dioxide.
$CaCO_3 + 2HCl \rightarrow CaCl_2 + CO_2 + H_2O$
Industrial preparation of carbon dioxide:
Limestone is heated to produce carbon dioxide.
$CaCO_3 \xrightarrow{\Delta} CaO + CO_2$
Laboratory preparation of carbon monoxide:
Formic acid is dehydrated with conc $H_2SO_4$ at $373 \ K$.
$HCOOH \xrightarrow{\text{conc } H_2SO_4, 373 \ K} H_2O + CO$
Industrial preparation of carbon monoxide:
Steam is passed over hot coke at high temperature.
$C + H_2O \xrightarrow{473-1273 \ K} CO + H_2$ (Water gas)