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Physical and Chemical changes

Cooking of fo...

Question

Cooking of food is a physical change that is desirable, reversible, and endothermic.

A

True

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B

False

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Solution

The correct option is B False
Chemical change: A change in which one or more new substances are formed is called a chemical change. A chemical change is also called a chemical reaction.
Examples of chemical changes is Rusting of iron, and cooking of food
Cooking of food:
It is a desirable change and endothermic as well but it is not a physical change because we can not reverse the change to get the original food substances.
Thus, the given statement is False. I.e., Cooking of food is a physical change that is desirable, reversible, and endothermic.

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Similar questions

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. Fill in the blanks to say whether the following changes are 'reversible' or irreversible':
1. A change which cannot be reversed is called ............................... .
2. Setting of cement is an example of a ............................... change.
3. Absorption of water by a sponge is an example of a ............................... change.
4. Cooking of food represents ............................... change.
5. Digestion of food is a ............................... change.

Cooking of food is a___________ (exothermic/endothermic) chemical change?

Q. Cooking of food is an example for both artificial and desirable change.

Burning of liquified petroleum gas (LPG) for cooking food is a desirable change.

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