Question

Q5: Most cooked food cannot change back to the way they were before. What
kind of change is it? Reversible or irreversible?​

Answer 1

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It is a chemical change. Also, it is an irreversible change.

How?

For an example : When we cook rice, new substance is formed that is cooked rice. It is also irreversible change i.e we can't change the cooked rice into rice again. Also, physical and chemical properties of substance changes during cooking.

In the final analysis, it is an irreversible and a chemical change.

More Information :

There are two types of changes :

Physical Changes

• In physical changes, new substance isn't formed.
• They are mostly reversible.
• They are temporary changes.
• Example : Cutting paper with scissor.

Chemical changes

• The change in which chemical properties of a substance changes is called chemical change.
• Chemical changes are irreversible.
• In a chemical change, new substance is formed.
• They are permanent changes.
• Example : Burning of paper.

Answer 2

Q5: Most cooked food cannot change back to the way they were before. What

kind of change is it? Reversible or irreversible?