Question

tearing of papper is irreversible. it is ,therefore ,a chemical change .do you agree?give reasons.

Answer 1

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$\underline\bold{Answer : No}$


↪ Chemical changes are changes that involves a molecular change and a new substance is formed.


↪ Even tearing of paper is irreversible, it is not a chemical change. It does not involve any molecular change and no new substance is formed.



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Answer 2

It is a physical change because the physical properties are only changed. But if we burn the paper a new substance is formed which is ash.It is a chemical change