Question

Incomplete combustion of fuel produces:
(A) $C{O_2}$
(B) $CO$
(C) ${H_2}O$
(D) ${H_2}$

Answer 1

Hint: Combustion is oxidation of compound in presence of sufficient supply of oxygen.
Fuels are organic compounds. Complete combustion produces carbon dioxide and water.


Step by step answer: incomplete combustion of fuel means parhal burning of a fuel.
This process is due to lack of oxygen or low temperature. This prevents complete chemical reaction and carbon monoxide is produced as a by product from incomplete combustion.

Therefore, from the above explanation the correct option is (B) $CO.$

Thus Incomplete combustion still produces water but along with this $CO$and $C$are also produced.
This carbon is released as soot.
Carbon monoxide gas is poison gas, therefore, complete combustion is pilfered to incomplete combustion.

Additional Information:
As we know that when combustion is incomplete, harmful products can be generated.
(1) $CO$ is most dangerous. It is flammable and can produce an explosion $CO$may cause breathing problems. It causes suffocation.
It has no odor, no color or test.
We can identify incomplete combustion by a yellow flame, root and excessive condensation.
Incomplete combustion produces less energy than complete combustion because all reactants are not consumed in the reaction.
Disadvantages of incomplete combustion are
(i) unbound carbon released
(ii) air is polluted
(iii) may cause respiratory problems.
Complete combustion is almost impossible to achieve. During incomplete combustion smoke is produced which is toxic and contains unbounded products

Note: All fuels contain organic compounds. It means carbon and hydrogen atoms are an essential element. Therefore in an incomplete combustion they do not get sufficient oxygen so carbon elements produce $CO$ but hydrogen produces water.