Question

Rust of iron is a pisical change our a chimical change

Answer 1

Rusting of iron is a chemical change because it is impossible to alter the process on reversing the condition.

Answer 2

Rusting of iron is a chemical change. As this process is irreversible.

Rusting is the process in which, iron reacts with oxygen and water. And it causes rust in it.

And we can't get back the iron as it reacts and formed rust.

Thus it's a chemical process.

Hope it's right..