Question

Is air a homogenous mixture ?

Answer 1

Air is a homogeneous mixture of the gaseous substances nitrogen, oxygen, and smaller amounts of other substances

Answer 2

Homogeneous mixture -

The mixture that has the same composition throughout. The components are distributed uniformly. The components can be distinguished from each other.

Examples - Salt in water, sugar in water.

So,

Air is also a mixture of different gases. They can not be distinguished from each other.

Hence,

Air is a homogeneous mixture.