Question

give one method for industrial preparation and one for laboratory preparation of CO and CO2 each​

Answer 1

Answer

Carbon monoxide (CO) :

CO is prepared by dehydration of formic acid with CO and H₂SO₄, at 373 K. The reaction involved is :

$\sf HCOOH \: \: \underset{conc. \: H_2SO_4}{ \xrightarrow { \text{373 \: k}}} \: \: H_2O + CO \: \uparrow$

CO is commercially prepared by passing steam over hot coke. The reaction involved is :

$\sf C_(s) + H_2O_{(g)} \: \: { \xrightarrow { \text{473 - 1273k}}} \: \: CO_{(g)} + H_{2(g) }$

Carbon dioxide (CO₂) :

CO₂ can be prepared by the action of dilute hydrochloric acid on calcium carbonate. The reaction involved is,

$\sf CaCO_3 + 2HCl_{(aq)} \to CaCl_{2(aq)} + CO_{2(g)} + H_2O_{(g)}$

CO₂ is commercially prepared by heating limestone. The reaction involved is,

$\sf COCO_3 \overset{ \Delta}{ \longrightarrow} CaO + CO_2$