Question

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Are tearing and burning of a piece of paper similar changes. If not, explain?


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Answer 1

Explanation:

Ans: Tearing of paer is a physical change because no new substance is formed, as the paper's colour will be the same. = Burning of paper is a chemical change because a new substance is formed i.e. ash and the paper's colour will too change. Tearing if paper is a physical change because no new substance is formed.

Answer 2

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Are tearing and burning of a piece of paper similar changes. If not, explain?

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No, tearing and burning of a piece of paper is not a similar change.

Explanation-When we tear a paper into pieces, it only change its size and shape but not its material. This shows it is a physical change but when we burn a paper, only ash is left behind which is the change in its materials. Such kind of change is known as chemical change. So both tearing and burning of a piece of paper is not a similar change. Thus tearing of paper is a physical change and burning of paper is a chemical change.