Which of the following statement is correct?

Both burning of a paper and cooking of food are examples of a physical change

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Both burning of wood and cooking of food are are examples of a chemical change

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Burning of a paper is a physical change and cooking of food is a chemical change

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Burning of a paper is chemical change and cooking of food is a physical change

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Solution

The correct option is B
Both burning of wood and cooking of food are are examples of a chemical change

Both burning of wood and cooking of food are chemical changes because in both cases, new substances are formed due to chemical reactions.

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Similar questions

Q. 78. Consider the following pairs:
Change Type of Change
1. Melting of ice cube: Physical Change
2. Digesting food: Chemical Change
3. Burning wood: Chemical Change
4. Breaking a glass: Chemical Change
5. Cooking an egg: Physical Change
Which of the pairs given above is/are correctly matched?

Sort the following according to their physical and chemical changes.

(i) Combustion of wood

(ii) Melting of ice.

(iii) Cooking of food.

(iv) Rusting of iron.

(v) Ripening of fruits.

(vi) Tearing of papers.

Chef Mehboob is mixing water and adding colour to the food he is cooking. Are we looking at physical or chemical change?

Q. Cooking Food is an example of chemical change. Explain.

(a) What can we conclude from burning of a candle with respect to physical and chemical changes?

(b) Is cooking of rice a reversible change?
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Which of the following statement is correct?

The correct option is B Both burning of wood and cooking of food are are examples of a chemical changeBoth burning of wood and cooking of food are chemical changes because in both cases, new substances are formed due to chemical reactions.

The correct option is B
Both burning of wood and cooking of food are are examples of a chemical change

Both burning of wood and cooking of food are chemical changes because in both cases, new substances are formed due to chemical reactions.