Question

Write any 5 changes which can be irreversible and also chemical at the same time.​

Answer 1

Answer:

Some examples of irreversible changes are burning of paper, Burning of fuels (like Wood, Coal and LPG), Cooking of food, Rusting of iron , Grinding of wheat grains into flour, Baking of chapatti (roti), Growth of a plant, Formation of flower from bud, Falling of leaves from a tree, Ripening of fruits, Ageing of man and

Answer 2

Irreversible change is a change that can't be undone, that is, it can't be reversed.

Explanation:

• Chemical alterations occur when a substance's chemical qualities, such as flammability and radioactivity, change. All chemical transformations are irreversible. When a material's chemical properties are altered, it transforms into a different substance. As a result, it is unable to return to its previous state.

A few examples are:

• When a piece of paper or wood is burned, it transforms into ash and smoke. The ash can no longer be used to make paper or wood.
• Cooking: Isn't it true that we utilize heat to cook? We can't un-cook eggs once they've been cooked. As a result, cooking is an irreversible transformation.
• Iron rotting: You've probably seen iron rusting. They react when water vapor (humidity) comes into touch with the iron. As a result, iron rusts, and once it does, we can't stop it.