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Chemical Change

Categorise th...

Question

Categorise these changes as reversible or irreversible.
a. Melting of an ice candy
b. Cooking of food
c. Souring of milk

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Solution

a. Melting of an ice candy - Reversible
b. Cooking of food - Irreversible
c. Souring of milk - Irreversible

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Similar questions

Q. Categorise these changes as reversible or irreversible.
a. Melting of an ice candy
b. Cooking of food
c. Souring of milk

Q. Write True (T) or False (F) against the following statements in the given brackets:
1. Digestion of food is a Q irreversible change. ( )
2. Rusting of iron is a reversible change. ( )
3. Melting of wax is a reversible change. ( )
4. Curding of milk is an irreversible change. ( )
5. Melting of ice cream is a reversible change. ( )

Q. Some changes are listed in the following table. For each change, write in the blank column, whether the change can be reversed or not.

\begin{matrix} S.No. & Change & Can be reversed (Yes/No) 1. & The sawing of a piece of wood 2. & The melting of ice candy 3. & Dissolving sugar in water 4. & The cooking of food 5. & The ripening of a mango 6. & Souring of milk \end{matrix}

Q. Fill in the blanks with the correct words.
1. Melting of ice-cream is an example of a/an .................... (reversible/irreversible) change.
2. Ripening of fruits is an example of a/an .................... (reversible/irreversible) change.
3. Cooking of foood is an example of a/an .................... (reversible/irreversible) change.
4. Breaking of glass is a .................... (physical/chemical) change.
5. .................... (Heating/Cooling) causes steam to change into water.

Q. Identify the following as reversible or irreversible changes, with reasons:
i) mixing iron filings and sand
ii) shattering of glass
iii) melting of ice

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