Question

Give one method for industrial preparation and one for laboratory preparation of CO and $C{{O}_{2}}$ each.

Answer 1

Hint: To answer this question firstly we should be aware of the difference between industrial and laboratory preparation. Especially knowing the uses of CO and $C{{O}_{2}}$ will help us in understanding and remembering the concept forever.

Complete answer:
Industrial preparation is done in large quantities in order to produce the product in large amounts. The laboratory preparation is done in a very small quantity that is the amount that is required to yield a product.
Now, see about preparation of CO in industries as well as long with some of its uses:
- Preparation of CO in industry:
By passing the water stream over coke under temperature 473K - 1273K
\[C+{{H}_{2}}O\to CO+{{H}_{2}}\]
Uses: - It is used in manufacture of steel as CO is used for reduction of ores.
- The CO which is highly pure is used for the electronics and semiconductor application.
- It is used in metal fabrication.
- Preparation of CO in laboratory:
By dehydration of formic acid in presence of strong dehydrating agents such as conc. ${{H}_{2}}S{{O}_{4}}$ at 337K.
\[HCOOH\to CO+{{H}_{2}}O\]
Dehydration means removal of water molecules.
Uses: It is used in the lab to prepare certain chemicals such as acids, esters and alcohols.
Now, see about preparation of $C{{O}_{2}}$in industries as well as long with some of its uses:
-preparation of $C{{O}_{2}}$ in industry:
By heating coke in presence of excess of oxygen
\[C+{{O}_{2}}\to C{{O}_{2}}\]
Uses: - $C{{O}_{2}}$ is used in the manufacture of casting molds in order to enhance their hardness.
- $C{{O}_{2}}$ is the main component in a fire extinguisher. The industry involved in fire extinguisher will rely on large quantities of $C{{O}_{2}}$.
-It is used in oil wells for oil extraction.
-preparation of $C{{O}_{2}}$ in laboratory:
It is an action of strong acid like hydrochloric acid on carbonates such as calcium carbonate.
\[CaC{{O}_{3}}+HCl\to CaC{{l}_{2}}+C{{O}_{2}}+{{H}_{2}}O\]
It has no significant uses in laboratory or laboratory preparation.

Note: CO is toxic to the human body. On inhaling CO it goes into our body and binds with hemoglobin and forms carboxy-hemoglobin which will decrease the oxygen in the body, thus leading to death. $C{{O}_{2}}$ is a major greenhouse effect gas , its presence is excess in the atmosphere which is a main reason for global warming. Even though it has many cons it is a very basic important component in industrial manufacture.