Question

The process of burning of a hydrocarbon in the presence of air to give $ C{O_2},{\text{ }}{H_2}O $ , heat and light is known as

Answer 1

Hint: There is only one process that gives the following products in the presence of air. This reaction produces fire. It takes place at a higher temperature. The reaction is exothermic. It happens between a fuel and oxygen (oxidant), giving out gaseous products, also termed as smoke.

Complete answer:
The process of burning a hydrocarbon in the presence of air to give $ C{O_2},{\text{ }}{H_2}O $ , heat and light is known as combustion of hydrocarbons. The products of the complete reaction of combustion are known as oxides. Fire is not always produced in combustion, because a flame is only visible when substances undergoing combustion vaporizer. Combustion of an organic fuel in air is always exothermic. The most common example of combustion is methane combustion which gives out carbon dioxide and water.
Hydrocarbon fuels can undergo complete combustion or incomplete combustion, depending upon how well oxygen is available. Complete combustion is when there is a proper good supply of air. An incomplete combustion is when the supply of oxygen is not proper. Water is produced in this but carbon monoxide is also produced along with carbon.

Note:
There is a general equation of combustion of hydrocarbons which is given as:
 $ hydrocarbon\; + {\text{ }}oxygen{\text{ }} \to {\text{ }}carbon{\text{ }}monoxide{\text{ }} + {\text{ }}carbon{\text{ }} + {\text{ }}water $
Here the carbon which is released is in the form of a soot. Carbon monoxide produced is very toxic. When complete combustion takes place in hydrocarbons then they usually burn with a blue flame and when there is incomplete burning the flame turns yellow.