Question

Why do petrol and water form a heterogeneous mixture

Answer 1

Petrol and water are 2 immicible liquid because of different density.
When they are mixed up they form
heterogeneous mixture that is the mixture is not in a definite proportion

Answer 2

Explanation:

A mixture in which constituent particles are not uniformly distributed throughout the mixture or solution is known as a heterogeneous solution.

For example, a mixture of petrol and water is a heterogeneous mixture as both of then do not mix with each other.

Density of petrol is higher than the density of water. Therefore, petrol will settle at the bottom.