Question

Which type of change, reversible or irreversible, takes place in each of the following cases? Give reasons for each. a. Ripening
b. Melting of ice cream c. Tearing of paper d. Curdling of milk

Answer 1

Answer:

Ripening - Irreversible

Melting of ice cream- Reversible

Tearing of paper - Irreversible

Curdling of milk - Irreversible

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Answer 2

Answer:

1. irreversible
2. reversible
3. reversible
4. irreversible

Explanation:

Here we go....

1. ripening is a chemical change and we know that chemical changes are mostly irreversible.
2. Melting of ice-cream is reversible as it is a physical change and physical changes are mostly reversible and also we can freeze it.
3. Tearing of paper is reversible as it is a physical change.
4. curdling of milk involves changes in chemical properties and hence is irreversible..

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