Give an example to justify the statement that physical changes can be reversible as well as irreversible.

Give an example of irreversible reaction

Give an example of a physical change in which the colour of the substance changes.

Unlike physical changes, chemical changes cannot be easily reversed.

Give one example for each case that happens around you. Reversible and irreversible change.

What are physical mutagens? Give examples.

What is artifical changes? Give example.

Find whether the following sentences are true or false.If false correct the statement. Physical change is irreversible.