Question

Give reason for the following :-

1. CO is used in extraction of metals.

2. CO is used as a fuel.​

Answer 1

Answer:

• When combustion reactions are incomplete due to low mixing or a shortage of oxygen, carbon monoxide (CO) is formed.
• Colorless and odourless, carbon monoxide is a gas.
• Carbon monoxide is a byproduct of all combustion sources, including stoves, gas boilers, power plants, waste incinerators, and automobiles.
• Although not dangerous, carbon monoxide temporarily affects the human respiratory system.
• Red blood cells cannot absorb oxygen when carbon monoxide is present because it bonds to them.

CO used in extraction of metals :

• CO is an odourless, colourless, and insoluble in water gas. It is a substance that lowers power. As a result, it is employed in the process of extracting metals from their oxide ores.

$Fe_2 O_3 (s) +3CO (g)$→ $3CO_2 (g) +2Fe (s)$

$ZnO(s) + CO(g)$→$Zn (s) + CO_2(g)$

• oxygen lacks this feature because it is an oxidising agent.

• CO is a nearly water-insoluble, colourless, and odourless gas.

• It is an effective reducer. Numerous metals are extracted from their oxide ores via this CO characteristic.

• The carbon and oxygen atoms of the molecule are joined by one sigma and two pie bonds.

• Due to the lone pair on C, CO functions as a donor and, when heated, interacts with some metals to produce metal carbonyls.

• Because CO may combine with haemoglobin to form a complex, it becomes extremely toxic.

• The oxygen -haemoglobin complex is about 300 times less stable than a CO-haemoglobin. This stops the red blood cells' haemoglobin from delivering oxygen throughout the body, which ultimately causes death.

CO as fuel :

• Because it can be reduced readily, CO is utilised as a fuel.
• An important factor in the oxidation of hydrocarbons is carbon monoxide (CO).
• Fuel will decompose during combustion into CO before being oxidised into carbon dioxide (CO2).
• The lanthanum, calcium, and iron oxide barrier permits oxygen from a stream of carbon dioxide to pass across to the other side while leaving carbon monoxide behind.
• In their lab, additional substances known as mixed ionic electronic conductors are being investigated for usage in a variety of processes, such as the creation of oxygen and hydrogen.
• The carbon monoxide created during this process can be used as fuel on its own or coupled with hydrogen, water, and/or other liquid hydrocarbons to create a variety of different liquid hydrocarbon fuels and chemicals, such as methanol (used as an automotive fuel), syngas, and others.
• Some of these alternatives are being looked upon by Ghoniem's lab.
• If used in the production of electricity, this method might be included in the group of technologies known as carbon capture, utilisation, and storage, or CCUS, which could lessen the effects of using fossil fuels on global warming.

#SPJ3

Answer 2

Answer:

CO is used in the extraction of metals and CO is used as a fuel because of its Reducing property of CO.

Explanation:

1. CO is used in the extraction of metals because it acts as a reducing agent. The carbon has the tendency to displace the metal from the oxide and reduce it, that's why it is used in the extraction of metals.

2. Carbon monoxide can be used as a fuel by itself or combined with hydrogen and/or water to make many other liquid hydrocarbon fuels as well as chemicals including methanol (used as an automotive fuel), syngas, and also, it gets easily decomposed by the reaction with the oxygen.

Hence, CO is used in the extraction of metals because of its reducing properties and CO is used as fuel because of its ease in combustion.

#SPJ2