Question

Which among the following is a chemical change?

Cooking of food

Mixing iron filings in sand

Freezing of water

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Answer 1

Answer:

Hey mate,

Here is ur answer.....

Cooking of food....

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Answer 2

Explanation:

1. Cooking Food is an example of chemical change. Cooking of food is a chemical change because after cooking, the raw ingredients or the vegetables cannot be regained again.

2. Mixing of iron filings and sand: Here mixing does not lead to any chemical reaction. So, this is an example of only physical change.

3. Freezing of water g. Burning of a candle. If the chemical composition is changing then it is a chemical change and if the chemical composition is remaining the same, then it is a physical change.

1st is the answer

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