The chemical reaction that occurs when gasoline and air are ignited is called a (

combustion reaction.

Explanation:

Gasoline is a mixture of hydrocarbons (with some other dded substances in minor proportion).

Assuming a hypothetical composition of the gasoline as C₅H₁₂ (only for explanation purposes), the chemical reaction that occurs when gasoline is burned is represented by:

Combustion is a special type of chemical reaction, in which oxygen combines with other substance (element or compound) releasing a large amount of energy in the form of heat and light. It is a very common reaction of the hydrocarbons and the products are carbon dioxide and water in the form of vapor.

The combustion of carbon (C) is a very important and common reaction that has been using to produce energy: C(s) + O₂(g) → CO₂ (g)

a electronegativity decreases beacuse the size of nucleus is bigger.